Want to witness an upcoming solar eclipse? Totality by Big Kid Science is the FREE app that will tell you when, where, and what you’ll see on eclipse day. Here are some of our awesome features:

- Find out exactly what you’ll see at your current location.
- Find the nearest locations where you can witness TOTALITY.
- Use navigation tools to help you find your best route to the path of Totality.
- Learn how, when, and why eclipses occur.
- Explore activities for families and schools, shop for eclipse glasses, and more.

What’s New

Version 1.4.1

Now available in Spanish!

Ratings and Reviews

4.5 out of 5
22 Ratings

22 Ratings

ScienceLabGirl ,

Big Stars for Big Kid Science

I love the interactive map feature. The details of the map surpass other apps that I have looked at in preparation of the eclipse. I've even been able to use it to pinpoint the best spot on the lake to watch! I'm an elementary science lab teacher in KY where we have a path of totality nearby so I especially appreciate the tabs available to educate people about eclipses and the section on classroom activities. Ironically, I already had some of the exact activities in my lesson plans for the next couple of weeks. The free app is definitely worth taking the time to download in time for the eclipse even if you've waited until the last minute!

EatCroc3 ,

Best eclipse app I have found

It gives detailed information about the eclipse at your location or any location. Great for scouting out locations to determine if trees or mountains will obstruct any part of the eclipse.

The Azimuth/Altitude of each contact is extremely helpful. It isn't clear if the azimuth is referenced to true or magnetic north. I assume true, but if the app were explicit about this, it would remove any doubt.


Excellent Eclipse Tool

This is an impressive app, and it's free! I could locate my address in the path of the totality and the app told me exactly what time the partial and the totality would start and end for my specific location. There are a number of learning and education resources included as well. This is definitely worth having.

App Privacy

The developer, Germinate LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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