EclipseDroid USB Free Version

158 reviews
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About this app

EclipseDroid is the ultimate companion for each engaged solar eclipse observer and all people, who are interested in solar eclipses. The app calculates exact data for any solar eclipse at any location. Relax and watch the eclipse and not your cameras, EclipseDroid will work for you!

New in Version 8: Search eclipses for your location, Portuguese language support.

Version 5 includes an EFlight mode for eclipse observation from an aircraft. Now all timing tasks will run in a service which prevent from being terminated in background.

EclipseDroid is especially designed to support engaged solar eclipse observers in their observations. It will show timetables and countdowns for the contact times, make acoustic announcements of the contacts or other user defined events. It will launch other apps, show text announcements and trigger internal or external cameras connected by USB (USB host capability and USB OTG cable required) or optical cable. All these events can be defined and customized in a script by the user. The timings of the events depend on the contact times which are calculated with high precision from the actual device's position or a custom location. For using USB functionality please set "USB Debugging" to On in Android Settings, Developer Settings.

To prepare your eclipse observation, select a desired location from the map, from a list or input free coordinates. To rehearse and check your observation program, simply run EclipseDroid in eclipse simulation mode. When selecting and checking your observation site, avoid unpleasant surprises like buildings or trees blocking your eclipse view! Just call the AR screen of EclipseDroid to see an overlay of the Sun's position at eclipse time with an actual camera image (only availabe in full version).

EclipseDroid has several screens and layouts to show the precise contact times for your location. These are the beginning and end of the eclipse (C1 and C4), the beginning and end of the total or annual phase (C2 and C3), the time of mid eclipse and the current percentage of coverage of the solar disk. You have the choice of two layouts: a smart layout showing the local circumstances and an animation of the eclipse in a condensed form or the classic layout with countdowns for all contacts, an events list with the next upcoming events and the actual eclipse view, if the eclipse is running.

In the 'eclipse details' screen you get full information about the local circumstances of the eclipse. Pressing 'Menu' will add the eclipse to your favorite personal calendar.

More features in Pro version:
- Eclipses > 2019,
- Database for Elements -3000 to 300 available
- global events and magnitude time table
- link to NASA maps.
- > 10 photos
- AR screen
- barometric logging

Required Permissions:
- Hardware controls: Camera for AR.
If compatibility refusal for devices without front camera: Try installation from my website!
- Exact location and network location: For site-specific calculations of the contact times.
- Internet Access: Online selection and network based localization of an observation site, database download.
- SD card access: Storing settings, event lists, logs, locations and databases.
- System tools: Keep screen on if connected to external power
- Your Account - Read Google service configuration: Needed for the Google maps module

Lunar eclipses are not supported, nor does the app contain pretty pictures of huge graphics!

Bugs or problems found? Please send an error report for bug fixing or send an email instead of giving bad ratings!
Translators welcome! If you like this app and prefer it in your language, contact me! Translation is rather easy.
Updated on
Jun 9, 2021

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158 reviews
A Google user
December 26, 2019
Best liteweight with much options, a nessecery app in devices, it deserve 7 stars
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A Google user
August 20, 2017
Rubbish. Doesn't work offline. Comes up with wrong times. Online and restart is fine. But offline is not! Even the date is wrong!
1 person found this review helpful
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W. Strickling
August 14, 2013
EclipseDroid and Eclipse2013 provide the same time, as long as you set in EclipseDroid the same time zone. The times are identical to the times on the NASA-Website, if DeltaT is adjusted by one second. Permission "Your Account - Read Google service configuration" is needed for the Google maps module
A Google user
August 22, 2017
This is a great app! I had several apps installed yesterday and this displayed the best and most complete information with no advertising getting in the way. I'm buying the pro version as a thank you, and I hope you're around in 2024!
1 person found this review helpful
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What's new

8.0.7 Delta T update
8.0.6 Map bug fixed
8.0.0 search an eclipse for actual location
7.4.1 Bugfixes, Portugese language support (beta)
7.3.0: P option in actions list. Extended logging: Parameters and times option.
See for detailes documentation.