ISS Spotter
FreeOffers In-App Purchases
1.6.1for iPhone, iPad and more
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ISS Spotter Screenshots
About ISS Spotter
> The most downloaded ISS spotting app on iOS!
> 5 star rating
> Used by astronauts and astronomers
> No ads. 100% functionality in the free version
ISS Spotter makes it easy for you to spot the International Space Station (ISS). You can see the forecast of visible passes and set alarms to be on time to view the ISS. The built in compass and tools will allow you to spot the ISS easily.
This app requires an Iphone 4S or better and iOS7+. Works on iPhone and iPad (full screen)
> 5 star rating
> Used by astronauts and astronomers
> No ads. 100% functionality in the free version
ISS Spotter makes it easy for you to spot the International Space Station (ISS). You can see the forecast of visible passes and set alarms to be on time to view the ISS. The built in compass and tools will allow you to spot the ISS easily.
This app requires an Iphone 4S or better and iOS7+. Works on iPhone and iPad (full screen)
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What's New in the Latest Version 1.6.1
Last updated on Dec 20, 2016
Old Versions
This app has been updated by Apple to display the Apple Watch app icon.
- fixed bug for notifications in iOS7
- fixed bug for notifications in iOS7
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Version History
1.6.1
Dec 20, 2016
This app has been updated by Apple to display the Apple Watch app icon.
- fixed bug for notifications in iOS7
- fixed bug for notifications in iOS7
1.6.0
Dec 13, 2016
Bug fix for notifications
1.5.1
Dec 30, 2014
v1.5.1
- Fix for notification permissions (alarms were not always working in iOS8)
- Fix for notification permissions (alarms were not always working in iOS8)
1.5.0
Nov 21, 2014
- Feature: iOS8 + iPhone 6 compatible
- Feature: added social Sharing options
- Feature: better address lookup
- Bug fix for earliest/latest alarm windows
- Bug fix for menu styling
- fixed typos
- added FAQs
- Feature: added social Sharing options
- Feature: better address lookup
- Bug fix for earliest/latest alarm windows
- Bug fix for menu styling
- fixed typos
- added FAQs
1.4.1
Nov 1, 2013
- Bugfix for maps when resuming app
- Bugfix for the ISS path that caused straight lines
- Map is centered after resuming app
- Removed Apple connection error
- Bugfix for the ISS path that caused straight lines
- Map is centered after resuming app
- Removed Apple connection error
1.4.0
Oct 11, 2013
- iOS7 ready
- Feature: added option to choose a custom location and to calculate passes for a custom location
- Feature: choose the number of minutes the alarm goes off before the pass
- Changed the algorithm to include passes when the sun is 5 degrees below the horizon instead of 6
- Changed beta Space-Track.org to stable Space-Track.org
- Bugfix for alarm settings between 23h and 24h
- Feature: added option to choose a custom location and to calculate passes for a custom location
- Feature: choose the number of minutes the alarm goes off before the pass
- Changed the algorithm to include passes when the sun is 5 degrees below the horizon instead of 6
- Changed beta Space-Track.org to stable Space-Track.org
- Bugfix for alarm settings between 23h and 24h
1.3.1
Nov 30, 2012
- Feature: added ISS Quick facts in the Settings screen
- Improvement: split settings for 12/24h time notation and distance in km/miles
- Bugfix for alarm time constraints that occured with 12AM.
- Bugfix for shadow times in compass screen
- changed default forecast to 7 days instead of 5 days
- Remove path on/off setting as few people used this option
- Improvement: split settings for 12/24h time notation and distance in km/miles
- Bugfix for alarm time constraints that occured with 12AM.
- Bugfix for shadow times in compass screen
- changed default forecast to 7 days instead of 5 days
- Remove path on/off setting as few people used this option
1.3.0
Oct 30, 2012
- Feature: added magnitude
- Feature: all distances are now shown in miles for non-metric users
- Improvement: the algorithm now includes a shadow calculation to show when ISS enters the shadow
- Improvement: the forecast times are the times the ISS has more than 10 degr elevation for better precision
- Improvement: some small changes in the forecast detail screen
- Improvement: the current pass is always visible for at least 20 mins to prevent 'loosing' the current pass
- Bugfix: better error messages when Celestrack, Amsat or Spacetrack are not responding
- Feature: all distances are now shown in miles for non-metric users
- Improvement: the algorithm now includes a shadow calculation to show when ISS enters the shadow
- Improvement: the forecast times are the times the ISS has more than 10 degr elevation for better precision
- Improvement: some small changes in the forecast detail screen
- Improvement: the current pass is always visible for at least 20 mins to prevent 'loosing' the current pass
- Bugfix: better error messages when Celestrack, Amsat or Spacetrack are not responding
1.2.1
Oct 10, 2012
- FULL iPad support!
- iPhone 5 support
- Bugfix IOS6: toolbar button in forecast
- User suggestion: remove the bar in the position screen
- iPhone 5 support
- Bugfix IOS6: toolbar button in forecast
- User suggestion: remove the bar in the position screen
1.2.0
Sep 27, 2012
- Feature: choose TLE source (Celestrack, Amsat or Spacetrack)
- Refactored notifications with new library
- Refactored ISS path with other library
- Changed algorithm to anticipate on ISS orbit changes
- Added option to make donations
- Bugfix: default weekend latest option was set to 12PM instead of 12AM
- Bugfix: sometimes the compass was not initiated.
- Bugfix: better interaction when switching between 24h/AMPM
- Bugfix: better caching for kepelements for better precision. Cache is now 1h with an option to reset it
- Refactored notifications with new library
- Refactored ISS path with other library
- Changed algorithm to anticipate on ISS orbit changes
- Added option to make donations
- Bugfix: default weekend latest option was set to 12PM instead of 12AM
- Bugfix: sometimes the compass was not initiated.
- Bugfix: better interaction when switching between 24h/AMPM
- Bugfix: better caching for kepelements for better precision. Cache is now 1h with an option to reset it
1.1.2
Aug 14, 2012
- Feature: added 12h (AM/PM) time notation option
- Feature: added option to set any time window
- Feature: forecast and compass now work without internet connection
- Bugfix: canceling individual alarms didn't always work
- Feature: added option to set any time window
- Feature: forecast and compass now work without internet connection
- Bugfix: canceling individual alarms didn't always work
1.1.1
Jul 22, 2012
v1.1.1
- bugfix for crashes in v1.1.0
Previous version (v1.1.0)
- Feature: added forecast path
- Feature: added settings to enable or disable path
- Feature: stored settings on iphone (instead of memory)
- Bugfix: app crashed when using manual and auto alarms at the same time
- changed default minimum elevation to 20°
- bugfix for crashes in v1.1.0
Previous version (v1.1.0)
- Feature: added forecast path
- Feature: added settings to enable or disable path
- Feature: stored settings on iphone (instead of memory)
- Bugfix: app crashed when using manual and auto alarms at the same time
- changed default minimum elevation to 20°
1.1.0
Jul 18, 2012
- Feature: added forecast path
- Feature: added settings to enable or disable path
- Feature: stored settings on iphone (instead of memory)
- Bugfix: app crashed when using manual and auto alarms at the same time
- changed default minimum elevation to 20°
- Feature: added settings to enable or disable path
- Feature: stored settings on iphone (instead of memory)
- Bugfix: app crashed when using manual and auto alarms at the same time
- changed default minimum elevation to 20°
1.0.2
Jun 11, 2012
- Bugfix: better error messaging for retrieving keplerian elements
- Bugfix: badges were not removed after alerts
- Bugfix: home button on position screen didn't function accurately. Made a quickfix for this.
- Feature: minimum peak elevation angle option in settings screen
- Feature: added cache reset option to settings screen
- Bugfix: badges were not removed after alerts
- Bugfix: home button on position screen didn't function accurately. Made a quickfix for this.
- Feature: minimum peak elevation angle option in settings screen
- Feature: added cache reset option to settings screen
1.0.1
May 23, 2012
- Bug fix: activity indicator on forecast screen was not always visible
- Feature: updated some icons
- Feature: added lock to the position screen
- Feature: KepElements are now cached for one week
- Feature: small improvements to alarm settings
- Feature: updated some icons
- Feature: added lock to the position screen
- Feature: KepElements are now cached for one week
- Feature: small improvements to alarm settings
1.0
May 7, 2012
ISS Spotter FAQ
Click here to learn how to download ISS Spotter in restricted country or region.
Check the following list to see the minimum requirements of ISS Spotter.
iPhone
Requires iOS 7.0 or later.
iPad
Requires iPadOS 7.0 or later.
iPod touch
Requires iOS 7.0 or later.
ISS Spotter supports English
ISS Spotter contains in-app purchases. Please check the pricing plan as below:
ISS Spotter donation 1
$0.99
ISS Spotter donation
$2.99
