Comparison

Eclipse Explorer vs Nebulae

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Eclipse Explorer

Explore solar eclipses with detailed circumstances for your location between 1900 and 2100. Features countdown timers, Sun and Moon simulations, and real-time shadow mapping. Overlay weather data to avoid clouds during totality.

Highlights
  • Location-based eclipse circumstances (1900-2100)
  • Countdown timers to eclipse events
  • Sun and Moon position simulation
  • Real-time Moon shadow mapping
  • Satellite and radar weather overlays
  • Offline map functionality
Features
Read full description

Eclipse Explorer is a free mobile app that allows you to view the circumstances for solar eclipses that occur between 1900 and 2100 using your GPS defined location. It uniquely features countdown timers to eclipse events at your specific location, simulates the position of the Sun and Moon, and draws the location of the Moon's shadow on the Earth in real-time. A solar eclipse is one of nature's most amazing spectacles, however, clouds can ruin your day. Use this app to overlay satellite and radar data on the day of the eclipse to make sure you stay within the path of totality and away from the clouds! Find out exactly when the eclipse starts and finishes for your location with countdown timers. Be ready for the total eclipse in August of 2017! Free, with minor ad support. Only one full page ad will be displayed per app start, then one banner ad, which will automatically close in less than 20 seconds. Please check out my website for full details and instructions on how to use the app. http://www.solareclipseapp.com Please keep in mind this is a CPU/GPU intensive app. Recommended for phones a tablets made within the last 2 years. Full Release Notes Welcome to Eclipse Explorer version 3! Now has a beautiful material design. Multi-threaded performance improvements. Improved accuracy. Improved shadow details. Newly designed map. Map works offline. Show weather overlays on the eclipse map. Optionally, show eclipse circumstances, map, and simulation on a single screen. Your all-in-one app for the Great American Eclipse of 2017. Full version history: v3.4.1 Fixed: iOS only: Upside down orientation fix. v3.4.0 New: Lunar limb profile for improved contact times (TSE2017 only) New: Solar corona shown during total phase in eclipse simulation Improved: GPS time correction sync. (Green clock is GPS time) Fixed: Offline map does not load in some situations. v3.3.0 New: Moon's shadow speed shown in realtime or during animation, only when (ant)umbral shadow is touching Earth. New: Distance to totality/annularity or distance to eclipse centerline shown. New: Max duration of totatlity/annularity at closest point along centerline shown. New: Info ball shows click for hint. Fixed: Another timezone crash bug. Fixed: Offline map sometimes did not display after app restart. Changed: Hints last longer. v3.2.0 New: Voice cue and three cue beep audio event indications. New: Next occurring circumstance will scroll to visibility and flash in realtime. New: App user hints and tips. Fixed: Realtime tag did not appear on simulation screen when it should have. Fixed: Zoom in button did not work in certain screen orientations. Fixed: Map may not display on app restart in offline mode. Fixed: Next visible eclipse selects day-of eclipse. Fixed: Animations tags may show up circumstance page when they should not. Fixed: Certain timezones caused app crash. Improved: Realtime shadow lag. Improved: Hardened code to ensure realtime shadow and simulation start on day of eclipse. Changed: Time travel mode will now sequence to 15 seconds prior to event. Total or annular begins event is 60 seconds. v3.1.0 Added: App maintains state through restart/refresh. Added: Location Freeze mode, long press location icon to freeze manual location. Long press to unfreeze. Improved: Shadow animations while GPS is on. Fixed: Race condition when selecting certain eclipses. Fixed: Draw all eclipse lines no matter which thread completes first. v3.0.5 Fixed location change while zooming. Made circumstance page more readable / flexible Various bug fixes v3.0.4 Fixed location change while zooming. Made circumstance page more readable / flexible Various bug fixes v3.0.2 * Made map more responsive to location change touches. * Fixed version code in about page v2.0.2 Fixed: Google Maps API Key added, Google maps feature should work. Improved: Built against latest Apache Cordova and latest Android SDK. Update: jQueryMobile v1.4.5

About

Nebulae

Features
Read full description

Nebulae! The most mysterious structures in the universe! Magnificent formations that seem the largest and most inaccessible. They are so far away that they can hardly be seen even with our telescopes. But we have put together images taken by the magnificent telescopes at ESO for you. FEATURES • In the "Browse" section, you will be able to quickly browse through hundreds of photos and also read detailed information about them. • In the "SlideShow" section, you will be able to browse through hundreds of impressive photos in full-screen size and feel as if you were in there at that moment. If you wish, you will be able to get detailed information about these impressive sights by tapping the Info button. Additionally, you can start auto-play by tapping the Play button on the top right. • In the "Gallery" section, you will be able to see all the photos impressively, show what you want in full screen, and when you want to examine them in detail, you can zoom in with the help of your fingers. • For those who do not want to be contented with just beautiful photos, there are many videos in the "Videos" section. • You will get detailed information about the ESO.

Screenshots

Eclipse Explorer2 screens
Nebulae4 screens

Verdict

The call

The clearest difference is in-app purchases: Eclipse Explorer at none against Nebulae's 1. Eclipse Explorer also leads on ads (none vs shown) and update cadence (every 5 days vs every 22 months). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nebulae sells 1 one-off in-app purchase. Eclipse Explorer asks for nothing beyond the download.

UpkeepUpdate frequency

Eclipse Explorer ships an update every 5 days, Nebulae every 22 months. The most recent releases landed on June 1, 2026 and September 11, 2026 respectively.

Scorecard4 real differences · 6 level
Eclipse Explorer versus Nebulae: the parameters behind the verdict, then further details
ParameterEclipse ExplorerNebulae
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 days — betterEvery 22 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.3 — better13.0
Further details — not scored
Size47 MB1.3 GB
Age rating4+9+
DeveloperJoshua BerlinAlparslan Topbas

In-app purchases

None

Eclipse Explorer

No in-app purchases

1 purchases

Nebulae

One-time1
  • Nebulae: Magnificent - AdFree$0.99

Questions

Is Eclipse Explorer free?
Eclipse Explorer is free to download, with no in-app purchases.
Is Nebulae free?
Nebulae is free to download, with in-app purchases available.
Do Eclipse Explorer or Nebulae have ads?
Nebulae shows ads; Eclipse Explorer does not.
Which is updated more often, Eclipse Explorer or Nebulae?
Eclipse Explorer ships an update every 5 days, and Nebulae every 22 months. Most recently, Eclipse Explorer was updated on June 1, 2026 and Nebulae on September 11, 2026.

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