- Fixed an issue where satellite data was not downloading.

- Fixed an issue where settings would be reset to default values on startup.

- Updates for increased compatibility with newer devices.

- Minor improvements behind the scenes.

- Fixed an issue preventing predictions for Starlink trains.

- Fixed an issue where satellite data would not download.

- Fixed an issue which could prevent sighting predictions after changing settings.

- Minor internal updates.

- Tiangong space station added
- Updated design

- Starlink satellite trains are now detected.

- Fixed issues with Dark Mode affecting devices running iOS 13.

- Added a few of the brightest satellites.

The old Iridium satellites have deorbited and have been replaced with the Iridium NEXT satellite network.
Unfortunately, these new satellites do not produce flares.

- Fixed an issue where no predictions would be made if satellite data was outdated.

- Optimizations for the iPhone X.
- Predictions for the Hubble Space Telescope are now available.

- Fixed an issue where notifications could not be scheduled on iOS7.
- Fixed various issues with the Watch App.

*** The Sputnik! Watch App now requires WatchOS 2 ***

- Increased internal cutoff values to show dimmer Iridium flares
- Fixed an issue that would cause occasional Iridium flares to not be included in prediction results
- Fixed an issue that could cause an error message to appear on the Watch app in some circumstances

- Minor bug fixes for the Apple Watch companion app.

- Sputnik! is now ready for Apple Watch!

- Optimizations for iPhone 6 and iPhone 6 Plus.

- Minor bug fixes.

- Redesign for iOS7.
- Satellite data is now downloaded even if the app is not running.
- Sputnik! now collects anonymous usage statistics to help us improve the app and correct errors. More information can be found in our privacy policy on the support website.

- Fixed an issue where brightness would be set to 100% after device auto-lock

- Faster calculations on devices with a multi-core processor.
- Minor bug fixes.

- iOS 6 compatibility updates.
- Sharing options now include Facebook, Sina Weibo, Mail and Messages (requires iOS 6.0 or higher).

*** Sputnik! now requires iOS 4.3 or higher to run ***

- Now uses the accelerometer to display elevation on devices without a gyroscope.
- Minor bug fixes.