Planet Gravity vs Gravity Zen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Planet Gravity
Engage in a physics-based game simulating asteroid flight and solar system creation. Complete missions to explore the universe and pass the time. Discover other titles for freeform universe building.
- Physics-based gameplay
- Asteroid simulation
- Solar system creation
- Level-based missions
- Universe exploration
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"Planet Gravity" is a physical base game. We simulate asteroids flying over space. And create the solar system step by step. On each level, we will have some missions for you to finished. The goal of this game is increase your interesting on universe and helping you to the pass the time. And if you want to create the universe on your own freely, we have two games suggested to you. Find "myDream Universe" or "Sandbox Planet" on Appstore.
Gravity Zen
Observe small circles interacting with a central gravity field. Add numerous boxes to explore how they naturally settle into a stable arrangement. It's a simple yet captivating simulation.
- Gravity field simulation
- Add multiple objects
- Observe stable configurations
- Interactive physics
- Minimalist design
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Watch small circles move around a central gravity field. Add as many boxes as you like. Explore how they find a "stable" configuration by themselves.
Screenshots
Verdict
The clearest difference is review sentiment: Gravity Zen at 93% against Planet Gravity's 44%. Gravity Zen also leads on price ($0.99 vs $11.00) and rating (4.8 vs 4.2). On ratings volume, in-app purchases, monetization model 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
Planet Gravity costs $11.00 and Gravity Zen $0.99 up front. Planet Gravity sells 1 one-off in-app purchase and Gravity Zen sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Gravity Zen holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 54 and 68 respectively. Written reviews point the same way: 44% of Planet Gravity's written reviews are positive against 93% of Gravity Zen's.
Planet Gravity ships an update every 4 months, Gravity Zen every 9 days. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.
| Parameter | Planet Gravity | Gravity Zen |
|---|---|---|
| Price | $11.00 | $0.99 — better |
| Rating | 4.2 (54 ratings) | 4.8 (68 ratings) — better |
| Positive reviews | 44.1% of reviews | 93.3% of reviews — better |
| Number of ratings | 54 | 68 — better |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 108 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Oscar Tsang | Dominik Hauser |
Customer experience
Planet Gravity
Gravity Zen
In-app purchases
Planet Gravity
- Golden Pass$2.99
Gravity Zen
- Small Tip$0.99
- Large tip$2.99
