Comet Book vs EZ PUSH
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.
EZ PUSH
This astronomy app helps you navigate the night sky. It functions as a star map, identifying celestial objects and stars up to magnitude 10.5. It offers features like 'roaming' and 'Messier marathon' to enhance your stargazing experience.
- Real-time sky mapping
- Celestial object identification
- Deep sky catalog integration
- Stargazing skill enhancement tools
- Bluetooth encoder compatibility
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EZ PUSH TO is a sky map app running precisely when the Bluetooth encoders on GSO Dobsonian is connected. Without encoders, the app still works relying on iPhone's compass and gravity sensor. EZ PUSH TO is designed for visual astronomy. The star map assists you browsing the real sky. The map is concise, but completed with Messier/NGC /Herschel catalogue, double and binary stars, comets and asteroids, and magnitude 10.5 stars (270K stars) for general purpose. EZ PUSH TO features lots amazing interface, such as lazy "roaming" in the deep sky, and "Messier marathon" to enhance your stargazing skills. It absolutely brings you and telescope freely to reach the real deep sky at your backyard, or in your family camping.
Screenshots
Verdict
The clearest difference is rating: Comet Book at 5.0 against EZ PUSH's 4.0. EZ PUSH's advantage is review sentiment (67% vs 55%). On price, ratings volume, update cadence and ads 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 4.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews complicate that: 55% of Comet Book's written reviews are positive against 67% of EZ PUSH's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on September 21, 2026 and September 14, 2026 respectively.
| Parameter | Comet Book | EZ PUSH |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 54.9% of reviews | 66.7% of reviews — better |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 6 months | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 54 MB |
| Age rating | 9+ | 4+ |
| Developer | Vixen Co.,Ltd. | Sun Pao |
Customer experience
Comet Book
EZ PUSH
In-app purchases
Comet Book
No in-app purchases
EZ PUSH
No in-app purchases
