# Evolution Planet vs Gravity Zen

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.

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.

## The numbers

| Metric | Evolution Planet | Gravity Zen |
| --- | --- | --- |
| Price | $14.99 | **$0.99** |
| Rating | [4.6 (77 ratings)](https://appshunter.io/ios/app/evolution-planet-14-billion/id1581068279/reviews) | **[4.8 (68 ratings)](https://appshunter.io/ios/app/gravity-zen/id1602081846/reviews)** |
| Number of ratings | **77** | 68 |
| Positive reviews | 60.9% of reviews | **93.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 134 MB | 13 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Dominik Hauser](https://appshunter.io/developer/325836858) |

## What reviewers say

### Evolution Planet

[App page](https://appshunter.io/ios/app/evolution-planet-14-billion/id1581068279)

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.

**Highlights:** Solar system simulation, Customizable planet orbits, Adjust planet size and rotation, Add rings and satellites, Save up to 100 solar systems

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5000 Energy | $1.99 | one-time |
| Remove Ad | $2.99 | one-time |
| 30000 Energy | $5.99 | one-time |
| 90000 Energy | $9.99 | one-time |
| 250000 Energy | $19.99 | one-time |
| 500000 Energy | $29.99 | one-time |


### Gravity Zen

[App page](https://appshunter.io/ios/app/gravity-zen/id1602081846)

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.

**Highlights:** Gravity field simulation, Add multiple objects, Observe stable configurations, Interactive physics, Minimalist design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Large tip | $2.99 | one-time |


## Frequently asked questions

### Is Evolution Planet free?

Evolution Planet costs $14.99, and also offers in-app purchases.

### Is Gravity Zen free?

Gravity Zen costs $0.99, and also offers in-app purchases.

### Which has better reviews, Evolution Planet or Gravity Zen?

Gravity Zen is rated higher. Evolution Planet averages 4.6 out of 5 from 77 ratings, while Gravity Zen averages 4.8 from 68 ratings.

### Do Evolution Planet or Gravity Zen have ads?

Evolution Planet shows ads; Gravity Zen does not.

### Which is updated more often, Evolution Planet or Gravity Zen?

Evolution Planet ships an update every 3 months, and Gravity Zen every 9 days. Most recently, Evolution Planet was updated on September 17, 2026 and Gravity Zen on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*