Totality: Your Solar Eclipse Companion

Put recent and upcoming total solar eclipses in your pocket with Totality by Big Kid Science, available FREE for iOS and Android smartphones! Totality is sponsored by the American Astronomical Society and includes the following features, among others:

  • Interactive map that shows what you’ll see at any location in North America for the total solar eclipse of April 8, 2024.
  • Interactive maps of recent (since 2017) and upcoming (through 2030) total solar eclipses worldwide. All maps are based on code by renowned eclipse expert Xavier Jubier.
  • Using your phone’s GPS, the app tells you not only what you can see at your current location, but also shows the nearest location where you can witness totality and, where possible, provides driving directions to the eclipse’s central line.
  • Zoom, scroll, and tap to move around the map, get a table of eclipse circumstances at any location, or bring up additional details.
  • Learn how, when, and why eclipses occur, as well as how to observe them safely.

And it's all FREE — with no ads — created as a public service by Big Kid Science and the American Astronomical Society.

Get Totality for iOS  Get Totality for Android

Totality Screen Grabs
Left: The Totality app's splash screen. Center-left: Pull up this handy tutorial at any time from the main menu. Center-right: Map of the April 8, 2024, total solar eclipse across North America. The green line shows the southern limit of the partial eclipse. Right: Easily access interactive maps of future eclipses through 2030.

New and improved version 4.0 of Totality by Big Kid Science is available for iOS and Android in English, Spanish, French, and Portuguese. (The appropriate language appears automatically based on your device's language setting.) This update was funded by a grant to the AAS Solar Eclipse Task Force from the American Institute of Physics (AIP) Venture Fund.

Get Totality for iOS  Get Totality for Android

Totality Screen Grabs
Left: Tap a spot in the path of totality to pull up a summary of the total eclipse at that position. Center-left: After tapping the DETAILS button, you get detailed eclipse circumstances there. Center-right: Tap a spot outside the path to pull up a summary of the partial eclipse at that position. Right: After tapping the DETAILS button, you get detailed eclipse circumstances there. The images show approximately what you'll see at maximum eclipse at the location you've specified.

Get Totality for iOS  Get Totality for Android

To learn more, see the app's page at Big Kid Science. For links to more eclipse-related smartphone apps, programs for desktop and laptop computers, and other useful resources, see our Apps & Software page.