What's New in 4.12

The most recent of release of TPE for iOS added solar eclipse paths for the last annular eclipse of Oct 14 2023 and upcoming total eclipse of Apr 8 2024. In addition, you can now access the full featured solar eclipse simulator directly from within the app.

Not announced in the release notes, but already available, the simulator includes the same Baily’s beads simulation capability as the web app (requires PRO subscription for future eclipses).

You can read more about how to use the Solar Eclipse functionality over on our Help Center.

Here are the most recent release notes for reference. More updates coming soon.


  • Fixed: calendar in Date selection page was not displayed at the correct height for some users



  • Solar eclipse paths included for Oct 14 2023 and Apr 8 2024 eclipses (on either Apple or Google Maps)
  • Solar eclipse timeline graphic updates
  • Tap solar eclipse graphic in the timeline to view full eclipse simulator (requires internet connection)


  • Google maps azimuth lines shown as geodesic
  • Elevation service uses SRTM3 instead of SRTM1 (too many gaps in SRTM1 data)
  • Updates for iOS 17
  • Libraries and crash reporting
  • Help content

To view one of the solar eclipse paths, set the date in the app to either Oct 14 2023 or Apr 8 2024. Drop the map pin within the central path (pink lines) or partial eclipse visibility area (purple lines). Adjust the time of day - the eclipse graphic will appear on the right of the Sun + Moon altitude chart when the eclipse is in progress. You can tap the eclipse graphic to view the full simulator, where you can play back the eclipse at a variety of speeds or select key moments in the eclipse using the provided controls, and check timings and durations of the various phases.

Please send your feedback and suggestions to support@photoephemeris.com - we’d love to hear from you.

If you’re enjoying TPE, a review on the App Store is really helpful and lets us keep improving the app.