Comet Book vs MeteorActive
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Comet Book
Discover and track comets with this educational app. It provides real-time direction and elevation data to help you locate celestial objects in the night sky. Explore the solar system in 3D and visualize the movement of comets and planets.
- Comet viewing direction and elevation
- Real-time celestial object tracking
- 3D Solar System mode
- Visualize comet and planet motion
- Observing site guidance
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The Comet Book app clearly shows when Comets can be viewed and in which direction. The direction and elevation of a Comet can change noticeably in a day due to its fast apparent motion. The moon and a bright planet may be convenient as a guide to find the comet though they have large apparent motion, too. This app determines where Comet is in the sky when it becomes visible at your observing site. You can easily start your observation of a Comet by using Comet Book as a guide to the direction and elevation of the comet. In addition, the new “3D Solar System seen from Space” mode allows you to view the motion of Comets and planets turning around the sun. Please take a look the comet’s movement around our solar system.
MeteorActive
Get accurate meteor shower forecasts based on your location, moon phase, and light pollution. Discover major events, upcoming nights, and hourly estimates for the best viewing opportunities.
- Major events calendar
- Upcoming nights predictions
- Hour-by-hour estimates
- Meteor showers reference
- Location-based accuracy
- Moon interference calculation
- Light pollution consideration
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The most accurate meteor activity forecast • Major events calendar • Upcoming nights predictions • Hour-by-hour estimates • Meteor showers reference Meteor activity varies greatly from one night to another. Most of the time you can expect to see 3-15 meteors per hour, but several times per year this number could rise to 90, or even more! The MeteorActive app uses the latest scientific findings and cutting edge technology to calculate how many meteors you can see at given time. It takes into account your geographical location, meteoroid stream orbits, moon interference and light pollution to find the most spectacular events for you. Clear skies!
Screenshots
Verdict
The clearest difference is review sentiment: MeteorActive at 89% against Comet Book's 55%. MeteorActive also leads on ratings volume (2.3K vs 2) and update cadence (every 6 weeks vs every 6 months). Comet Book's advantage is rating (5.0 vs 4.8) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Comet Book holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: MeteorActive has 2.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 55% of Comet Book's written reviews are positive against 89% of MeteorActive's, so the app with the better star average is not the one people write more warmly about.
Comet Book ships an update every 6 months, MeteorActive every 6 weeks. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.
| Parameter | Comet Book | MeteorActive |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.8 (2.3K ratings) |
| Positive reviews | 54.9% of reviews | 88.9% of reviews — better |
| Number of ratings | 2 | 2.3K — better |
| Update frequency | Every 6 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 10 MB | 33 MB |
| Age rating | 9+ | 4+ |
| Developer | Vixen Co.,Ltd. | Alexander Vasenin |
Customer experience
Comet Book
MeteorActive
Bugs and requests
Comet Book
Not enough reviews yet to summarise bugs or requests.
MeteorActive
Reported bugs
3 issues- App crashes when trying to access certain features
- Charts and visualizations not updating correctly
- Inconsistent performance on older devices
Requested features
4 requests- Add notification system for meteor showers
- Integrate with calendar app for easy scheduling
- Provide more location-specific data and recommendations
- Expand coverage to include more minor meteor showers
In-app purchases
Comet Book
No in-app purchases
MeteorActive
No in-app purchases
