# Solar System Planets vs OptiUniverse

The clearest difference is in-app purchases: OptiUniverse at none against Solar System Planets's 3. OptiUniverse also leads on update cadence (every 10 days vs every 3 months). Solar System Planets's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Solar System Planets sells 3 in-app purchases, starting at $9.99 per month. OptiUniverse asks for nothing beyond the download.

Solar System Planets ships an update every 3 months, OptiUniverse every 10 days. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Solar System Planets | OptiUniverse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (10 ratings)](https://appshunter.io/ios/app/solar-system-planets-3d-space/id6463002338/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 150 MB | 421 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Evgeniya Senchurova](https://appshunter.io/developer/1676838995) | [Maksim Doroshenko](https://appshunter.io/developer/1058512649) |

## What reviewers say

### Solar System Planets

[App page](https://appshunter.io/ios/app/solar-system-planets-3d-space/id6463002338)

Explore our solar system with interactive 3D models and detailed information about each planet. Discover celestial bodies and uncover their secrets through a user-friendly interface, perfect for students and space enthusiasts alike.

**Highlights:** Interactive 3D solar system model, High-resolution planet imagery, Detailed planet information, User-friendly interface, Educational content, Celestial body exploration

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month Premium Access | $9.99 | per month |
| Three Months Premium Access | $19.99 | per 3 months |
| One Year Premium Access | $24.99 | per year |


### OptiUniverse

[App page](https://appshunter.io/ios/app/optiuniverse/id6751552499)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar System Planets free?

Solar System Planets is free to download, with in-app purchases available.

### Is OptiUniverse free?

OptiUniverse is free to download, with no in-app purchases.

### Do Solar System Planets or OptiUniverse have ads?

Neither Solar System Planets nor OptiUniverse shows ads.

### Which is updated more often, Solar System Planets or OptiUniverse?

Solar System Planets ships an update every 3 months, and OptiUniverse every 10 days. Most recently, Solar System Planets was updated on October 15, 2026 and OptiUniverse on October 24, 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.*