iPhone Screenshots


August 21, 2017 will be the first time a total solar eclipse will be visible in the continental United States since 1979, and the first time an eclipse is visible only in the US since 1776.

The Eclipse Megamovie Mobile app from the Space Sciences Laboratory at UC Berkeley and Ideum is specifically designed to help you view and photograph this incredible event and link you to a nationwide citizen-science project studying the sun.

Taking good photos of astronomical events requires a steady hand and precise control of exposure time and sensitivity. Megamovie Mobile will help you get tack-sharp photos of the eclipse by controlling your smartphone camera and taking a series of images automatically. The app also provides information about mounting your phone on a tripod, adding an external lens, or using a DSLR.

The app also helps you plan ahead with information about the best route from your location to the eclipse’s path and a countdown clock ticking down to the big event. And if you use a DSLR to capture the eclipse, your images may become part of a stunning crowd-sourced movie created by Google.

In addition, Eclipse Megamovie Mobile will link you to The Megamovie Project (https://eclipsemega.movie), a group of scientists who study eclipses and what they reveal about our sun. When you use the app and provide your permission, the images you take, and the time and location data they’re associated with, will become part of a massive dataset of eclipse observations from around the country that researchers will use for years to come.

Map of the path of totality showing your distance and shortest route to view the eclipse.
Countdown timer linked to your location.
Instructions for setting up your phone with a tripod and external lens.
Practice Mode to get you ready to photograph the eclipse.
Automatic exposure and shutter control.

What's New

Version 1.06

* Bug Fixes
- Crash fix in Orientation for DSLR option
- Layout fixes in UI

*Added new DSLR countdown screen with GPS Coordinates in Eclipse Day Image Capture

Ratings and Reviews

3.3 out of 5

10 Ratings

10 Ratings

Not idiot-proof


I downloaded the app on the 7+ hour drive to TN. Was giddy about clear presentation of information - time, location, what to expect. Somewhere in the prep text (am I imagining things?) I thought it said, "don't worry, we will walk you through this." So I expected that at my location at the beginning of totality, there would be an alarm, a tone, or a message. 2. I tried the practice routine, but was confused about what the timer was timing, because it's seem to have no relation to when the pictures were being taken by the camera. 3. And here's the painful part-at full totality I realize there would be no notification, and scrambled to find the button where I would take the actual pictures. It wasn't obvious to me where this was, so I was torn between having the experience of fully being in the eclipse or using this app. Somehow in my panic, I did not register the line that said "Eclipse Day Image Capture" because I was looking for something that said "go "or "take the pictures." Eclipse Day Image Capture is clear enough, but not the same kind of colloquial language as the rest of the options - or am I trying to not admit I'm an idiot? It's flat, it's a noun, not a verb. I still feel foolish and am angry at myself for trying to use the app rather than "being there."



Totally went off countdown timer....that was a huge mistake. After partial eclipse had passed here in Michigan the app said it was still like an hour from happening.

It was easy to use but it wasn't until I really looked that it said timer was for closest total solar eclipse from my location putting me an hour behind with other states having a time difference.
Luckily, I went outside a couple of times early to set up equipment, so I got photos from my camera and Megamovie got nothing from my phone. Have a nice day.



Found this today, used it in Nashville with my battery creeping down to 1%-eek! But thanks to this app design-the countdown, time, how to's, voice warning at just the right time! And of course very cool to be able to add to a national database. Thanks for making this happen!!


82 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2017 Ideum Inc.


  • Family Sharing

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

More By This Developer

You May Also Like