3.5.1
2023-10-19
After many years of development, we have achieved an even higher level of measurement accuracy! You can now use the dedicated Lightray Diffuser & Cosine Corrector accessory as an alternative to the paper diffuser. Turn your device into a truly professional light meter. Learn more right within the app. This minor update includes fixes for the iPhone SE (1st generation) and devices running iOS 12.
3.5.0
2023-10-13
After many years of development, we have achieved an even higher level of measurement accuracy! You can now use the dedicated Lightray Diffuser & Cosine Corrector accessory as an alternative to the paper diffuser. Turn your device into a truly professional light meter. Learn more right within the app.
3.4.0
2023-09-25
We've added factory calibrations for the latest iPhone 15, 15 Plus, 15 Pro, and 15 Pro Max to ensure you get the highest accuracy available on any smartphone out there.
3.3.3
2023-09-20
This version includes a few minor usability improvements and enhances the performance of Photone.
3.3.2
2023-08-15
We improved our calibration feature to ensure precise alignment with a calibration reference and better guidance.
3.3.1
2023-05-21
This update fixes an issue on iOS 13 that prevented the app to start properly.
3.3.0
2023-05-14
We’ve added support for our Portuguese speaking community! Furthermore we’ve included an option to disable the automated diffuser detection for the rare cases it fails to adequately detect a diffuser. Additionally we’ve added an alternative to our Pro Subscription.
3.2.6
2023-04-15
We added the possibility to give feedback on Photone's wording and improved many smaller things along the way.
3.2.4
2023-01-21
We fixed a problem that may have happened when trying to send us an email. Everything works smoothly again now.
3.2.2
2022-10-07
The new iPhones are here! We now added factory calibrations for the iPhone 14, iPhone 14 Plus, iPhone 14 Pro, and the iPhone 14 Pro Max.
3.2.1
2022-09-26
This update includes improvements for iOS 16 and other invisible maintenance.
3.2.0
2022-07-29
Photone is now available in simplified and traditional Chinese. Let us know if you spot any errors.
3.1.0
2022-06-28
The Photone light measurements are now even more sensitive to lower light levels. This way, you can measure light levels als low as the dark period. Learn how dark your grow really is when your lights are off and if your plants are getting a good sleep :)
3.0.4
2022-06-15
We’ve added better explanations about our light source handling and made a few smaller improvements along the way
3.0.3
2022-04-27
We have added the option to auto-translate our guides in French or Spanish.
3.0.2
2022-03-14
We've further improved our in app guides and added new content. Additionally the automated diffuser detection was improved.
3.0.1
2022-02-25
We've added some new and updated content to our guides to help you achieve better plant lighting and knowhow! Furthermore, we've made some stability improvements and improved our Pro support.
3.0.0
2022-02-01
We've improved our unique measurement algorithm to match top notch PAR meters even better. Furthermore, we've reduced battery consumption and improved performance, so that our app runs smooth, even if you're using an older device.
2.7.1
2021-12-08
We've added a specific setting for blue / white LED light sources to further increase accuracy. Enjoy!
2.7.0
2021-09-30
We've added new light sources. Pro users are now able to reset the advanced readings by tapping on them. Photone now also supports the new iPhone 13 as well as the new iPads. On iPads you can now benefit from the multitask feature: open Photone next to your favorite notes app to write down your measurements or to look up DLI/PPFD values side by side to the actual measurements.
2.6.1
2021-09-10
We've fixed a bug that prevented videos from playing within our Guides.
2.2.4
2021-01-13
We're further improving our app based on your feedback. This time, we've added explanations about the different types of measurement and offer a French version as well. Special thanks to Grégory Vernon for helping us translating the app!
2.2.3
2020-12-29
We've added a better introduction tutorial and fine-tuned our measurement algorithm for some older iOS devices to improve accuracy and performance. Furthermore we've added a guest article from our friend Mr. Houseplant.
2.2.2
2020-12-09
We are further increasing accuracy! Korona now comes with a better factory calibration for iPhone XR, XS, 11, and 11 Pro as well as for the iPhone 6.
2.2.0
2020-11-22
We've added support for more languages. So far we just have two but expect more to come. Let us know which language you need.
Better factory calibration for iPhone 8, iPhone SE 2020, iPad Mini and others.
2.1.3
2020-11-04
We've drastically improved the measurement accuracy by adding native support for a diffuser and built in instructions on how to make one.
Learn more about our accuracy in our white paper: https://korona.app/whitepaper/
2.1.2
2020-10-28
We've drastically improved the measurement accuracy by adding native support for a diffuser and built in instructions on how to make one.
Learn more about our accuracy in our white paper: https://korona.app/whitepaper/
2.1.0
2020-10-10
We've drastically improved the measurement accuracy by adding native support for a diffuser and built in instructions on how to make one.
Learn more about our accuracy in our white paper: https://korona.app/whitepaper/
2.0.0
2020-09-20
We've drastically improved the measurement accuracy by adding native support for a diffuser and built in instructions on how to make one.
Learn more about our accuracy in our white paper: https://korona.app/whitepaper/
1.4.5
2020-09-09
We have added the ability to upgrade to our Korona Pro program to access all lights, measure light temperature in Kelvin, and receive our premium support.
1.4.4
2020-09-07
We have added the ability to upgrade to our Korona Pro program to access all lights, measure light temperature in Kelvin, and receive our premium support.
1.4.3
2020-08-20
We have added the ability to upgrade to our Korona Pro program to access all lights, measure light temperature in Kelvin, and receive our premium support.
1.4.0
2020-08-08
We have added more supported grow lights to further improve PAR measurement accuracy for previously unsupported types of lights. Additionally, we have added and updated our articles and the ability to upgrade to our Korona Pro program.
1.3.0
2020-07-10
We have added a more intuitive and pleasing way to manage the grow light inventory. Furthermore, we've added a few tweaks on how we display the measurement values.
1.2.1
2020-06-04
We are constantly building a better Korona. This time, we have added full iPad support, made changes to how we measure red and blue "blurple" LED light and improved the battery life when running the app.
1.2.0
2020-04-27
We are constantly building a better Korona. This time, there have been the following improvements from the last version:
- new user interface design
- measurement area is shown on main screen
- improved calibration user experience
- bugfixes and improvements
1.1.11
2020-04-21
We are constantly building a better Korona. This update brings improvements to the user interface when dealing with a disabled camera and a few improvements under the hood.
1.1.10
2020-04-05
We are continuously building a better Korona. This time, we have updated our image processing to give you a higher resolution preview as well as many improvements in the usability of the measurement functionality.
1.1.9
2020-03-03
We have changed the store layout to make it more intuitive. We've also added sleep prevention to keep your device on when you're measuring.
1.1.8
2020-02-15
We have introduced some new features and improvements. Korona now runs smoothly on devices running iOS versions lower than 13. The image freezes now when holding, so you can see what kind of image was processed during the hold.
1.1.7
2020-01-27
Based on our user's requests, we have added support for additional light sources to Korona.
Furthermore, we have made some small improvements on Korona's user interface.
1.1.6
2019-12-15
We have updated our app introduction to provide better clarity on how to use Korona.
1.1.5
2019-10-12
We are adding Dark Mode support for iOS13. Furthermore, we have added the option to adjust the measured illuminance to your favorite unit.
1.1.4
2019-09-16
We've been hard at work to offer support for full spectrum / broad spectrum LED grow lights as a new light profile.
1.1.3
2019-08-02
We changed the way our calibration feature works to make it easier for you to calibrate Korona against a reference measurement.
1.1.2
2019-06-19
We further empower the accurate measurement of PPFD and DLI when using LED or metal halide (MH) lighting with our newly added selectable light sources.
1.1.1
2019-06-11
We have been hard at work to increase the overall usability when dealing with different light sources.
Furthermore, we have added a new page to overview your light inventory. Enjoy!
1.1.0
2019-06-01
We have now added the possibility to select the specific light source to be measured. This further improves accuracy on PPFD and DLI measurements.
1.0.2
2019-05-26
We have added first informational articles to educate plant-related lighting knowledge. Check them out on the info-screen.
1.0.1
2019-05-04
We have added the hold mode to simplify accurate measurement in hard-to-read conditions.
Simply tap on the bottom of the screen to "hold" your measured value.