# mySolar vs Gravity Zen

The clearest difference is review sentiment: Gravity Zen at 93% against mySolar's 41%. Gravity Zen also leads on rating (4.8 vs 4.2) and ads (none vs shown). mySolar's advantage is price (Free vs $0.99) and ratings volume (407 vs 68). On in-app purchases, device support and iOS requirement there is nothing between them.

mySolar is free to download; Gravity Zen costs $0.99 up front. mySolar sells 3 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 4.2. That said, the two scores are not equally well evidenced: mySolar has 407 ratings behind it against 68, so its average is the more settled of the two. Written reviews point the same way: 41% of mySolar's written reviews are positive against 93% of Gravity Zen's.

mySolar ships an update every 3 months, Gravity Zen every 9 days. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | mySolar | Gravity Zen |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.2 (407 ratings)](https://appshunter.io/ios/app/mysolar-build-your-planets/id1237470522/reviews) | **[4.8 (68 ratings)](https://appshunter.io/ios/app/gravity-zen/id1602081846/reviews)** |
| Number of ratings | **407** | 68 |
| Positive reviews | 41.1% of reviews | **93.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 131 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

### mySolar

[App page](https://appshunter.io/ios/app/mysolar-build-your-planets/id1237470522)

Become a celestial architect and shape your own solar system. Collect cosmic resources to expand your universe, conquer rival systems, and freely design your dream planets. Experience the power of creation and domination.

**Highlights:** Build your own solar system, Collect God points (GP) and Mass points (MP), Defeat rival solars, Absorb enemy resources, Freely build planets

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30000 GP | $2.99 | one-time |
| 80000 GP | $5.99 | one-time |
| 150000 GP | $9.99 | one-time |

**What reviewers like**

- 🚀 Powerful star and planet creation
- 👍 Satisfying gameplay loop
- 🌌 Visually appealing space environment

**What reviewers complain about**

- 🐛 Bugs and glitches causing progress loss
- 💰 Expensive in-app purchases
- 🤔 Unclear progression and upgrade system

**Reported bugs**

- Levels not progressing properly after completing objectives
- Planets and upgrades disappearing after watching ads
- Inability to create binary or multi-star systems

**Requested features**

- Sandbox mode with more customization options
- Multiplayer or co-op gameplay
- Improved tutorial and onboarding


### 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 mySolar free?

mySolar is free to download, with in-app purchases available.

### Is Gravity Zen free?

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

### Which has better reviews, mySolar or Gravity Zen?

Gravity Zen is rated higher. mySolar averages 4.2 out of 5 from 407 ratings, while Gravity Zen averages 4.8 from 68 ratings.

### Do mySolar or Gravity Zen have ads?

mySolar shows ads; Gravity Zen does not.

### Which is updated more often, mySolar or Gravity Zen?

mySolar ships an update every 3 months, and Gravity Zen every 9 days. Most recently, mySolar was updated on September 23, 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.*