Solar Eclipse Timer

In-app purchases
810 reviews
Content rating
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About this app

The Solar Eclipse Timer app was developed by me, an expert eclipse chaser and eclipse educator, to help people get the most enjoyment out of observing and photographing a total solar eclipse.

#1 ECLIPSE TIMING APP It was the #1 eclipse timing app used during the 2017 total solar eclipse that crossed the United States. It was used successfully for solar eclipses in 2019, 2020, 2021, and, most recently, 2023, in Australia. It was featured in Sky and Telescope Magazine in 2002, 2003, 2017, and 2022. Over 630 positive comments were posted after the 2017 eclipse.

It is so easy to use! Basically a "Two Tap Setup." Get into the path; 1 Tap to Geolocate. 2. Tap to Load the Contact Times. That's it! The app geolocates to find your position in the path and then calculates your precise contact times. It does not require internet access to do this. You are now timing the eclipse with me as your personal astronomer guide!

In collaboration with Fred Espenak (Mr. Eclipse), there is a new feature for 2024 called Photographer's Mode. In this mode, all spoken announcements are about the eclipse timing relative to the contact times. There are only three other essential reminders: two remove your solar filters, max eclipse, and replace solar filters. This mode was designed specifically for eclipse photographers.

The app's unique feature is that it announces the countdowns to the contact times out loud. It reminds you to observe interesting eclipse phenomena like temperature changes, lighting changes, animal behavior, shadow bands, umbra approach, and more. It tells you when it is safe to take your glasses off and when to put them back on. There are spoken reminders for MAX eclipse, looking for planets and stars, and observing the horizon. You won't miss a thing because I become your personal eclipse astronomer, talking you through the eclipse!

The FREE download portion allows you to play with the app, see its features, and realize its benefits on Eclipse Day.

The Solar Eclipse Timer app is coordinated with my solar eclipse preparation book called "Eclipse Day - 2024 and More! How to enjoy, observe, and photograph a total solar eclipse." This unique book has its chapters organized by the progression of the eclipse on eclipse day, and the chapters also follow the sequence of announcements by the app. See my website,, for more information about the book.

Partial Eclipse Timing Mode - It can also time the eclipse as a partial eclipse if you are not in the path of totality. It displays your maximum percent coverage and then continuously shows the progress of the eclipse. The announcements are altered to be appropriate for your maximum eclipse percentage.

This app Is Ad Free! This app DOES NOT track user data in any form.

New Exciting Feature! Photographer’s Mode. Developed in collaboration with Fred Espenak. This mode is designed for eclipse photographers! It changes the announcements to timings only, except for a reminder to remove solar filters, max eclipse, and replace solar filters.
Updates to assure compatibility with new operating systems.
Updates to ensure proper functionality with no internet connection.
Updated on
Nov 8, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

794 reviews
Bryan Burrows
October 14, 2023
No camera filter for the eclipse. Just the garbage app for pretending to view an eclipse.
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Foxwood Astronomy
October 25, 2023
Why would you think that a camera filter would come with an app download? That makes no sense! My app is the only one in the world that "talks" people through an eclipse. In the latest version, I collaborated with Fred Espenak, a world-renowned eclipse expert, who would never be associated with a "garbage app." Please remove this review.
A Google user
July 9, 2019
A great app! Must have for anyone watching a total solar eclipse. Contains useful reminders for what to do (i.e. observe for shadow bands, remove camera filters, observe for planets and stars, observe the horizon, etc) and more importantly, when to do it. Time in totality is rare and precious and there's a lot to do in a very short period of time, and these reminders will make sure you don't forget to do something you should do! During the 2017 eclipse, I didn't have this app, and I literally forgot to observe for planets and stars (even though I did capture them in my photos) and I also forgot to observe the horizon. I also didn't look for shadow bands. During the 2019 eclipse, I had this app, and I remembered to do everything because of the reminders given in the app. For $1.99 per eclipse, it's well worth it! It also means you don't spend valuable totality time looking at your watch to find out when the various events will occur.
23 people found this review helpful
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Foxwood Astronomy
July 11, 2019
Aaron, Thanks for the 5-Star Rating and detailed report. I love your comparison of seeing the 2017 eclipse WITHOUT my app and then seeing the 2019 eclipse USING my app. It explains, from a real user, the benefits of my app for eclipse observing. I am an eclipse chaser and I designed this app exactly for the purposes you explained. Thanks!
August 2, 2022
Amazing app! Used it before and during the 2017 eclipse. It was extremely helpful with scouting our viewing site as well as with narrating all phases of the event perfectly. Our experience viewing that eclipse could not have been better, and I give this app a lot of the credit.
1 person found this review helpful
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Foxwood Astronomy
August 2, 2022
iflyme, thank you for the 5-Star rating and your great comment! The newest version of the app is ready for 2024! Please go to the Google Book Store and look at my new eclipse ebook. A new concept in eclipse book organization. It's multimedia and the most comprehensive eclipse prep book available. Search the title - Eclipse Day 2024 and More.