Evolution Planet vs Gravity Zen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Evolution Planet
Create and customize your own solar systems with detailed control over planetary orbits, sizes, and rotation. Save up to 100 unique celestial configurations. Explore the vastness of space you design.
- Solar system simulation
- Customizable planet orbits
- Adjust planet size and rotation
- Add rings and satellites
- Save up to 100 solar systems
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We develop to simulate a solar system, you can freely to configure and customise the solar system behaviour, change planet orbit size, shape, and speed. Also, you are change to planet size, rotational speed, rotational axis, and add ring, satellite and etc. Current it can store up to 100 different solar system.
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 price: Gravity Zen at $0.99 against Evolution Planet's $14.99. Gravity Zen also leads on ads (none vs shown) and review sentiment (93% vs 61%). 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
Evolution Planet costs $14.99 and Gravity Zen $0.99 up front. Evolution Planet sells 6 one-off in-app purchases 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 4.6. Both are backed by a comparable volume of ratings — 77 and 68 respectively. Written reviews point the same way: 61% of Evolution Planet's written reviews are positive against 93% of Gravity Zen's.
Evolution Planet ships an update every 3 months, Gravity Zen every 9 days. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.
| Parameter | Evolution Planet | Gravity Zen |
|---|---|---|
| Price | $14.99 | $0.99 — better |
| Rating | 4.6 (77 ratings) | 4.8 (68 ratings) — better |
| Positive reviews | 60.9% of reviews | 93.3% of reviews — better |
| Number of ratings | 77 — better | 68 |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 134 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Oscar Tsang | Dominik Hauser |
Customer experience
Evolution Planet
Gravity Zen
In-app purchases
Evolution Planet
- 5000 Energy$1.99
- Remove Ad$2.99
- 30000 Energy$5.99
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- 90000 Energy$9.99
- 250000 Energy$19.99
- 500000 Energy$29.99
Gravity Zen
- Small Tip$0.99
- Large tip$2.99
Questions
Is Evolution Planet free?
Is Gravity Zen free?
Which has better reviews, Evolution Planet or Gravity Zen?
Do Evolution Planet or Gravity Zen have ads?
Which is updated more often, Evolution Planet or Gravity Zen?
Other comparisons
