SensorLog
Log and Stream Sensor Data
$5.99
5.3.1for iPhone, iPad and more
Age Rating
SensorLog Screenshots
About SensorLog
With SensorLog you can read sensor data from the iPhone, iPad and Apple Watch.
The sensor data can be saved as a file in CSV or JSON format, streamed via TCP/UDP or sent as an HTTP request.
The most important functions for iPhone and iPad:
- Sensor data can be recorded at up to 100Hz (depending on the iOS device version and sensor type).
- Sensor data can be streamed in server or client mode using TCP or UDP. Depending on the network speed and the server or client configuration used, this is possible with up to 100Hz.
- Via HTTP(S) GET/POST request, sensor data in JSON format (POST) or form-url encoded (POST and GET) can be transmitted to a REST API with up to 20Hz.
- With the SensorLog Remote Client/Server function, an iPad or iPhone can connect as a SensorLog Remote Client to an iPhone or iPad, which takes on the role of SensorLog Remote Server. The client's sensor data can be visualized on the server, and the server can control the clients (start/stop logging, start/stop sending data).
- Logging can be started and stopped using Siri and shortcuts.
- SensorLog supports Core ML models created with Apple's Create ML app. Log data with SensorLog, train a model with the data in Create ML, load exported models in SensorLog and log the model prediction. Supported Create ML models are: Activity Classifier, Tabular Regressor and Tabular Classifier.
- If you have an Apple Watch, HealthKit data such as heart rate, energy used, sleep and movement data can be exported on the watch as a csv or json file and then transferred to your iPhone.
Sensor data iPhone / iPad:
For sample log files, please visit the SensorLog homepage (link App Support).
- CLLocation, CLHeading, CMAccelerometer, CMGyroData, CMMagnetometer, CMDeviceMotion, CMActivity, CMPedometer, CMAltimeter, WLAN and network provider IP addresses, device orientation, battery info, decibels.
The most important functions for Apple Watch:
- Logging Option 1: Logging duration up to 1 hour
Simultaneous logging of all selectable sensor data is supported in the background with up to 50Hz. Individual sensors can be logged with a higher frequency of up to 100Hz. Sending data via HTTP requests is supported.
- Logging option 2: Logging duration greater than 1 hour
In the background only logging of the accelerometer data with max. 50Hz is supported. In the foreground all sensor data with up to 100Hz. Sending data via HTTP requests is only supported when the app is in the foreground.
- Via HTTP(S) GET/POST request, sensor data can be transmitted to a REST API with up to 10Hz in JSON format (POST) or form-url encoded (POST and GET).
- The Health Store data feature off the SensorLog Watch app allows you to export HealthKit data like heart rate, energy burned, sleep, and movement data. This data is automatically recorded by your Watch and can be read out and exported by SensorLog as csv or json file and transferred to your iPhone.
- Logging can be started and stopped using Siri and Shortcuts.
Sensor Data Watch:
For sample log files, please visit the SensorLog homepage (link App Support).
- CLLocation, CMAccelerometer, CMDeviceMotion, CMActivity, CMPedometer, CMAltimeter, battery info
The sensor data can be saved as a file in CSV or JSON format, streamed via TCP/UDP or sent as an HTTP request.
The most important functions for iPhone and iPad:
- Sensor data can be recorded at up to 100Hz (depending on the iOS device version and sensor type).
- Sensor data can be streamed in server or client mode using TCP or UDP. Depending on the network speed and the server or client configuration used, this is possible with up to 100Hz.
- Via HTTP(S) GET/POST request, sensor data in JSON format (POST) or form-url encoded (POST and GET) can be transmitted to a REST API with up to 20Hz.
- With the SensorLog Remote Client/Server function, an iPad or iPhone can connect as a SensorLog Remote Client to an iPhone or iPad, which takes on the role of SensorLog Remote Server. The client's sensor data can be visualized on the server, and the server can control the clients (start/stop logging, start/stop sending data).
- Logging can be started and stopped using Siri and shortcuts.
- SensorLog supports Core ML models created with Apple's Create ML app. Log data with SensorLog, train a model with the data in Create ML, load exported models in SensorLog and log the model prediction. Supported Create ML models are: Activity Classifier, Tabular Regressor and Tabular Classifier.
- If you have an Apple Watch, HealthKit data such as heart rate, energy used, sleep and movement data can be exported on the watch as a csv or json file and then transferred to your iPhone.
Sensor data iPhone / iPad:
For sample log files, please visit the SensorLog homepage (link App Support).
- CLLocation, CLHeading, CMAccelerometer, CMGyroData, CMMagnetometer, CMDeviceMotion, CMActivity, CMPedometer, CMAltimeter, WLAN and network provider IP addresses, device orientation, battery info, decibels.
The most important functions for Apple Watch:
- Logging Option 1: Logging duration up to 1 hour
Simultaneous logging of all selectable sensor data is supported in the background with up to 50Hz. Individual sensors can be logged with a higher frequency of up to 100Hz. Sending data via HTTP requests is supported.
- Logging option 2: Logging duration greater than 1 hour
In the background only logging of the accelerometer data with max. 50Hz is supported. In the foreground all sensor data with up to 100Hz. Sending data via HTTP requests is only supported when the app is in the foreground.
- Via HTTP(S) GET/POST request, sensor data can be transmitted to a REST API with up to 10Hz in JSON format (POST) or form-url encoded (POST and GET).
- The Health Store data feature off the SensorLog Watch app allows you to export HealthKit data like heart rate, energy burned, sleep, and movement data. This data is automatically recorded by your Watch and can be read out and exported by SensorLog as csv or json file and transferred to your iPhone.
- Logging can be started and stopped using Siri and Shortcuts.
Sensor Data Watch:
For sample log files, please visit the SensorLog homepage (link App Support).
- CLLocation, CMAccelerometer, CMDeviceMotion, CMActivity, CMPedometer, CMAltimeter, battery info
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What's New in the Latest Version 5.3.1
Last updated on Mar 15, 2023
Old Versions
- bug fixes
iPhone/iPad:
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- SensorLog Remote client supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"startSendingSensorData"}
{"request":"stopSendingSensorData"}
{"request":"setDataLabel", "label":0..5}
- SensorLog Remote server supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"setDataLabel", "label":0..5}
{"request":"startLoggingAllConnectedClients"}
{"request":"stopLoggingAllConnectedClients"}
{"request":"loadConfiguration", "url":"URL_SENSORLOG_CONFIG_FILE"}
{"request":"setDataLabelAllConnectedClients", "label":0..5}
- SensorLogRemote server can now be started with dedicated server port
- Beta status: Support for connecting at most one external Bluetooth sensor/device to log its data into a separate log file or to merge its data with the builtin sensors' log file/stream/http. Please note this is still in a beta status.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added support to start SensorLog with a specific configuration via custom app link by using the link SensorLog://configure/?urlConfigurationServer=URL. You can set the URL and it will automatically fetch the JSON configuration file from the server.
Watch:
- Unfortunately had to remove tcp/ip streaming and Remote Sensorlog feature, due to changes in the low level networking functions of watchOS.
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added HealthKit Export of envAudioExposure data
iPhone/iPad:
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- SensorLog Remote client supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"startSendingSensorData"}
{"request":"stopSendingSensorData"}
{"request":"setDataLabel", "label":0..5}
- SensorLog Remote server supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"setDataLabel", "label":0..5}
{"request":"startLoggingAllConnectedClients"}
{"request":"stopLoggingAllConnectedClients"}
{"request":"loadConfiguration", "url":"URL_SENSORLOG_CONFIG_FILE"}
{"request":"setDataLabelAllConnectedClients", "label":0..5}
- SensorLogRemote server can now be started with dedicated server port
- Beta status: Support for connecting at most one external Bluetooth sensor/device to log its data into a separate log file or to merge its data with the builtin sensors' log file/stream/http. Please note this is still in a beta status.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added support to start SensorLog with a specific configuration via custom app link by using the link SensorLog://configure/?urlConfigurationServer=URL. You can set the URL and it will automatically fetch the JSON configuration file from the server.
Watch:
- Unfortunately had to remove tcp/ip streaming and Remote Sensorlog feature, due to changes in the low level networking functions of watchOS.
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added HealthKit Export of envAudioExposure data
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Version History
5.3.1
Mar 15, 2023
- bug fixes
iPhone/iPad:
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- SensorLog Remote client supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"startSendingSensorData"}
{"request":"stopSendingSensorData"}
{"request":"setDataLabel", "label":0..5}
- SensorLog Remote server supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"setDataLabel", "label":0..5}
{"request":"startLoggingAllConnectedClients"}
{"request":"stopLoggingAllConnectedClients"}
{"request":"loadConfiguration", "url":"URL_SENSORLOG_CONFIG_FILE"}
{"request":"setDataLabelAllConnectedClients", "label":0..5}
- SensorLogRemote server can now be started with dedicated server port
- Beta status: Support for connecting at most one external Bluetooth sensor/device to log its data into a separate log file or to merge its data with the builtin sensors' log file/stream/http. Please note this is still in a beta status.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added support to start SensorLog with a specific configuration via custom app link by using the link SensorLog://configure/?urlConfigurationServer=URL. You can set the URL and it will automatically fetch the JSON configuration file from the server.
Watch:
- Unfortunately had to remove tcp/ip streaming and Remote Sensorlog feature, due to changes in the low level networking functions of watchOS.
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added HealthKit Export of envAudioExposure data
iPhone/iPad:
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- SensorLog Remote client supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"startSendingSensorData"}
{"request":"stopSendingSensorData"}
{"request":"setDataLabel", "label":0..5}
- SensorLog Remote server supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"setDataLabel", "label":0..5}
{"request":"startLoggingAllConnectedClients"}
{"request":"stopLoggingAllConnectedClients"}
{"request":"loadConfiguration", "url":"URL_SENSORLOG_CONFIG_FILE"}
{"request":"setDataLabelAllConnectedClients", "label":0..5}
- SensorLogRemote server can now be started with dedicated server port
- Beta status: Support for connecting at most one external Bluetooth sensor/device to log its data into a separate log file or to merge its data with the builtin sensors' log file/stream/http. Please note this is still in a beta status.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added support to start SensorLog with a specific configuration via custom app link by using the link SensorLog://configure/?urlConfigurationServer=URL. You can set the URL and it will automatically fetch the JSON configuration file from the server.
Watch:
- Unfortunately had to remove tcp/ip streaming and Remote Sensorlog feature, due to changes in the low level networking functions of watchOS.
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added HealthKit Export of envAudioExposure data
5.3
Mar 13, 2023
iPhone/iPad:
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- SensorLog Remote client supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"startSendingSensorData"}
{"request":"stopSendingSensorData"}
{"request":"setDataLabel", "label":0..5}
- SensorLog Remote server supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"setDataLabel", "label":0..5}
{"request":"startLoggingAllConnectedClients"}
{"request":"stopLoggingAllConnectedClients"}
{"request":"loadConfiguration", "url":"URL_SENSORLOG_CONFIG_FILE"}
{"request":"setDataLabelAllConnectedClients", "label":0..5}
- SensorLogRemote server can now be started with dedicated server port
- Beta status: Support for connecting at most one external Bluetooth sensor/device to log its data into a separate log file or to merge its data with the builtin sensors' log file/stream/http. Please note this is still in a beta status.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added support to start SensorLog with a specific configuration via custom app link by using the link SensorLog://configure/?urlConfigurationServer=URL. You can set the URL and it will automatically fetch the JSON configuration file from the server.
Watch:
- Unfortunately had to remove tcp/ip streaming and Remote Sensorlog feature, due to changes in the low level networking functions of watchOS.
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added HealthKit Export of envAudioExposure data
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- SensorLog Remote client supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"startSendingSensorData"}
{"request":"stopSendingSensorData"}
{"request":"setDataLabel", "label":0..5}
- SensorLog Remote server supports incoming JSON requests:
{"request":"status"}
{"request":"startLogging"}
{"request":"stopLogging"}
{"request":"setDataLabel", "label":0..5}
{"request":"startLoggingAllConnectedClients"}
{"request":"stopLoggingAllConnectedClients"}
{"request":"loadConfiguration", "url":"URL_SENSORLOG_CONFIG_FILE"}
{"request":"setDataLabelAllConnectedClients", "label":0..5}
- SensorLogRemote server can now be started with dedicated server port
- Beta status: Support for connecting at most one external Bluetooth sensor/device to log its data into a separate log file or to merge its data with the builtin sensors' log file/stream/http. Please note this is still in a beta status.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added support to start SensorLog with a specific configuration via custom app link by using the link SensorLog://configure/?urlConfigurationServer=URL. You can set the URL and it will automatically fetch the JSON configuration file from the server.
Watch:
- Unfortunately had to remove tcp/ip streaming and Remote Sensorlog feature, due to changes in the low level networking functions of watchOS.
- SensorLog configuration files. Support for saving, and loading SensorLog configuration files. Downloading of configuration settings from Web server via HTTP.
- added configuration option to "auto set initial attitude reference" before starting to log data.
- added HealthKit Export of envAudioExposure data
5.2
Mar 4, 2022
iPhone / iPad
- bugfix: crash long term acceleromter export view
- SensorLog Remote server mode now supports logging of sensor data from connected SensorLog Remote clients
- bugfix: crash long term acceleromter export view
- SensorLog Remote server mode now supports logging of sensor data from connected SensorLog Remote clients
5.1
Mar 1, 2022
iPhone/iPad:
- Long-term recording of accelerometer data with up to 50Hz even if SensorLog is not active (up to 12 hours, recordings are kept up to 3 days)
- Use of ISO 86010 time format for time information in log data (timestamps are unchanged)
- Long-term recording of accelerometer data with up to 50Hz even if SensorLog is not active (up to 12 hours, recordings are kept up to 3 days)
- Use of ISO 86010 time format for time information in log data (timestamps are unchanged)
5.0
Feb 20, 2022
iPhone and iPad
- SensorLog Remote server and client: You can now connect your iPhone and iPad (as a SensorLog Remote client) with a SensorLog App running as SensorLog Remote server. From your SensorLog App running as SensorLog remote server you can start and stop logging on the connected SensorLog Remote clients.
- Visualize sensor data of connected SensorLog Remote clients on your SensorLog remote server
- Landscape mode for iPad
- Streaming in server mode now allows multiple clients to connect to SensorLog (before only one client connection was possible)
- App operation in the background is not supported on iPhone and iPad anymore, according to Apple’s background operation guidelines.
- "Lock Screen" feature to keep app in foreground for long term logging and streaming
- added feature to share all files at once as zip archive
- Siri and Shortcut Support: SensorLog recording (logging) can now be started via Siri or Shortcuts. Therefore define your shortcuts via Apple's shortcuts app and use Siri to stop and start recording / logging.
- CLLocation speedAccuracy and courseAccuracy data added to log data
Watch:
- HealthKit / Store data export as csv and JSON format
- SensorLog Remote client mode: Connect your Watch (or multiple watches) as SensorLog Remote client with your iPhone or iPad running a SensorLog Remote server. From your iPhone or iPad you can start and stop logging on your connected watches.
- SensorLog Remote client mode: Send sensor data to iPhone or iPad SensorLog remote server to be visualized.
- added feature to send all log files at once to iPhone
- Siri and Shortcut support: Setup the shortcuts on your coupled iPhone and set the details of your shortcut (defined via Apple's shortcut app) so that it is also shown on the apple watch. Siri on your Watch then recognizes the shortcut command and starts "log to file" on your Apple Watch.
- CLLocation speedAccuracy and courseAccuracy data added to log data
- SensorLog Remote server and client: You can now connect your iPhone and iPad (as a SensorLog Remote client) with a SensorLog App running as SensorLog Remote server. From your SensorLog App running as SensorLog remote server you can start and stop logging on the connected SensorLog Remote clients.
- Visualize sensor data of connected SensorLog Remote clients on your SensorLog remote server
- Landscape mode for iPad
- Streaming in server mode now allows multiple clients to connect to SensorLog (before only one client connection was possible)
- App operation in the background is not supported on iPhone and iPad anymore, according to Apple’s background operation guidelines.
- "Lock Screen" feature to keep app in foreground for long term logging and streaming
- added feature to share all files at once as zip archive
- Siri and Shortcut Support: SensorLog recording (logging) can now be started via Siri or Shortcuts. Therefore define your shortcuts via Apple's shortcuts app and use Siri to stop and start recording / logging.
- CLLocation speedAccuracy and courseAccuracy data added to log data
Watch:
- HealthKit / Store data export as csv and JSON format
- SensorLog Remote client mode: Connect your Watch (or multiple watches) as SensorLog Remote client with your iPhone or iPad running a SensorLog Remote server. From your iPhone or iPad you can start and stop logging on your connected watches.
- SensorLog Remote client mode: Send sensor data to iPhone or iPad SensorLog remote server to be visualized.
- added feature to send all log files at once to iPhone
- Siri and Shortcut support: Setup the shortcuts on your coupled iPhone and set the details of your shortcut (defined via Apple's shortcut app) so that it is also shown on the apple watch. Siri on your Watch then recognizes the shortcut command and starts "log to file" on your Apple Watch.
- CLLocation speedAccuracy and courseAccuracy data added to log data
4.0
Jul 6, 2021
- For Apple Watch: New feature "Long Term Accelerometer Data" allows the recording and saving of accelerometer sensor data for up to 3 days at 50Hz. The SensorLog app on the Apple Watch must be activated once within 12 hours.
- bug fixes
- bug fixes
3.9
May 21, 2021
- support for setting an initial attitude reference frame (offset, relevant for CMDeviceMotion attitude values) for iPhone, iPad, and Watch
- bug fixes
- bug fixes
3.8
Jan 25, 2021
iPhone:
- now only sensor data charts are shown for those sensors selected to be logged
- added option to set minute logging rate
- added option to delete all log files at once
- added option to reset Pedometer data automatically at midnight
- added watch remote control to start / stop watch logging, data labelling (Watch has to be in reach of iPhone and SensorLog has to be running in foreground on the watch)
- added MLModelOutput chart
- added Magnetometer chart
- added logging timestamp for almost all sensors
- improved background handling
- added DeviceMotion heading data for logging
- bugfix: remove leading and trailing whitespaces from selected field separator
watch:
- added deviceID log feature
- added "fill missing data with previous data" this allows to reduce size of log files
- added option to delete all log files at once
- added option to reset Pedometer data automatically at midnight
- improved upload of files to iPhone (file is split into chunks for upload)
- added additional iPhone DeviceMotion data to watch UI
- added DeviceMotion heading data for logging
- added support for CMAttitudeReferenceFrame setting (necessary for DeviceMotion magnetic sensor data)
iOS 14.3 watchOS 7.2 required
- now only sensor data charts are shown for those sensors selected to be logged
- added option to set minute logging rate
- added option to delete all log files at once
- added option to reset Pedometer data automatically at midnight
- added watch remote control to start / stop watch logging, data labelling (Watch has to be in reach of iPhone and SensorLog has to be running in foreground on the watch)
- added MLModelOutput chart
- added Magnetometer chart
- added logging timestamp for almost all sensors
- improved background handling
- added DeviceMotion heading data for logging
- bugfix: remove leading and trailing whitespaces from selected field separator
watch:
- added deviceID log feature
- added "fill missing data with previous data" this allows to reduce size of log files
- added option to delete all log files at once
- added option to reset Pedometer data automatically at midnight
- improved upload of files to iPhone (file is split into chunks for upload)
- added additional iPhone DeviceMotion data to watch UI
- added DeviceMotion heading data for logging
- added support for CMAttitudeReferenceFrame setting (necessary for DeviceMotion magnetic sensor data)
iOS 14.3 watchOS 7.2 required
3.7.1
Jun 8, 2020
- bug fix logging pedometer data
3.7
May 29, 2020
- Bugfixes
3.6
Apr 30, 2020
- rework of ML Model functionality and UI: Now SensorLog supports loading of Core ML models created with Apple's Create ML app. Simply log data with SensorLog, load the data in Create ML, create and train your model in Create ML, load the exported ML model in SensorLog, and log the model's prediction with SensorLog. Currently supported Create ML models are: Motion:Activity Classifier, Table: Tabular Regressor and Tabular Classifier.
- added possibility to add an addtional HTTP header field for HTTP based logging: Allows for easier integration with IOT / cloud services.
- added log file recovery support for prematurely terminated log sessions on Watch.
- added possibility to add an addtional HTTP header field for HTTP based logging: Allows for easier integration with IOT / cloud services.
- added log file recovery support for prematurely terminated log sessions on Watch.
3.5
Feb 25, 2020
- Improvements Apple Watch background logging
- Option to choose JSON Logging-Format (pretty, standard)
- bug fixing
SensorLog v3.5 requires iOS 13.2 or newer, watchOS 6.1 or newer
- Option to choose JSON Logging-Format (pretty, standard)
- bug fixing
SensorLog v3.5 requires iOS 13.2 or newer, watchOS 6.1 or newer
3.4.1
Dec 26, 2019
- Rework of Background Logging on Apple Watch (details please see description)
- Bugfix: timestamp background logging Apple Watch
- Bugfixes
- SensorLog v3.4 requires iOS 13.2 or newer, watchOS 6.1 or newer
- Bugfix: timestamp background logging Apple Watch
- Bugfixes
- SensorLog v3.4 requires iOS 13.2 or newer, watchOS 6.1 or newer
3.4
Dec 20, 2019
- Rework of Background Logging on Apple Watch (details please see description)
- Bugfixes
- SensorLog v3.4 requires iOS 13.2 or newer, watchOS 6.1 or newer
- Bugfixes
- SensorLog v3.4 requires iOS 13.2 or newer, watchOS 6.1 or newer
3.3
Nov 1, 2019
- Apple Watch App: send sensor data (JSON or form url-encoded format) via HTTPS POST/GET requests to arbitrary REST server
- Apple Watch App: stream sensor data via tcp/ip (JSON or csv format) to arbitrary server (requires connected iPhone with LAN/WAN connection)
- UI rework of Apple Watch App
- Apple Watch App bugfixes
- support of dark mode for iPhone and iPad
- requires: iOS 13+ and watchOS 6.0+
- Apple Watch App: stream sensor data via tcp/ip (JSON or csv format) to arbitrary server (requires connected iPhone with LAN/WAN connection)
- UI rework of Apple Watch App
- Apple Watch App bugfixes
- support of dark mode for iPhone and iPad
- requires: iOS 13+ and watchOS 6.0+
3.2
Aug 8, 2019
Bug Fix UI
3.1
Aug 7, 2019
Bug fix: HTTP upload rate not correct after app restart
3.0
Jul 9, 2019
- UDP streaming support
- SensorLog can now also be used as streaming client (i.e. tcp/udp streaming of sensor data to a dedicated server)
- faster upload of Watch app log files to the iPhone
- direct logging of Watch sensor data on the iPhone (data sample loss possible)
- UI updates
- bug fixes
- SensorLog can now also be used as streaming client (i.e. tcp/udp streaming of sensor data to a dedicated server)
- faster upload of Watch app log files to the iPhone
- direct logging of Watch sensor data on the iPhone (data sample loss possible)
- UI updates
- bug fixes
2.6
Mar 25, 2019
- Data labeling now available on Apple Watch
- Activity, Pedometer, and Altimeter data can now be individually be logged on Apple Watch
- Watch battery information can now be logged
- Size of Apple Watch log files only limited by available free memory
- bug fixes
- Activity, Pedometer, and Altimeter data can now be individually be logged on Apple Watch
- Watch battery information can now be logged
- Size of Apple Watch log files only limited by available free memory
- bug fixes
2.5
Jan 9, 2019
- JSON logging format (file,tcp,http) for iPhone, iPad, and Apple Watch
- increased HTTP upload rate
- increased Apple Watch sampling rate
- bug fixes
- increased HTTP upload rate
- increased Apple Watch sampling rate
- bug fixes
2.4
Oct 26, 2018
- bugfixes
2.3
Jul 27, 2018
- SensorLog now supports loading of Core ML Models. Load your trained Core ML Models into SensorLog and feed them with iOS sensor data ((iPhone and iPad).
- Log Core ML model output as csv, via tcp/ip or HTTP like any other sensor supported by SensorLog. Currently Core ML Models with input feature types int, double and string are supported.
- Logging of raw CMMagnetometerData is added.
- Machine Learning Framework friendly log file format for an easier import of log files into existing ML frameworks.
- Bugfixes, UI Improvements (please note SensorLog csv column name state is now named label)
- Log Core ML model output as csv, via tcp/ip or HTTP like any other sensor supported by SensorLog. Currently Core ML Models with input feature types int, double and string are supported.
- Logging of raw CMMagnetometerData is added.
- Machine Learning Framework friendly log file format for an easier import of log files into existing ML frameworks.
- Bugfixes, UI Improvements (please note SensorLog csv column name state is now named label)
2.2
Jun 1, 2018
SensorLog now requires iOS 11.3 and watchOS 4.3
Bugfix watch app: Core Location position logging
Bugfix watch app: Core Location position logging
2.1
Feb 26, 2018
CMPedometer Data (average active pace, current pace, and current cadence) added to logging and UI.
Bug Fix: Values for Battery Level and Battery State were swapped when doing HTTP uploads.
Bug Fix: Values for Battery Level and Battery State were swapped when doing HTTP uploads.
2.0
Nov 28, 2017
Now you can record Apple Watch sensor data with SensorLog v2.0.
With a sampling rate of 60s to 60Hz the following sensor data of your Apple Watch can be recorded as csv file:
- Position information (CoreLocation)
- Acceleration and Attitude (Accelerometer, DeviceMotion)
- Activity information (Activity, Pedometer)
- Barometric information (Altimeter)
With a sampling rate of 60s to 60Hz the following sensor data of your Apple Watch can be recorded as csv file:
- Position information (CoreLocation)
- Acceleration and Attitude (Accelerometer, DeviceMotion)
- Activity information (Activity, Pedometer)
- Barometric information (Altimeter)
SensorLog FAQ
Click here to learn how to download SensorLog in restricted country or region.
Check the following list to see the minimum requirements of SensorLog.
iPhone
Requires iOS 16.2 or later.
iPad
Requires iPadOS 16.2 or later.
Apple Watch
Requires watchOS 9.1 or later.
SensorLog supports English, German
SensorLog contains in-app purchases. Please check the pricing plan as below:
Invite me for a Cocktail ...
$9.99
Spend me an Ice Cream ...
$1.99
Buy me a Coffee ...
$0.99
Offer me a glas of Wine ...
$5.99
