# Planet Gravity vs solAR

The clearest difference is review sentiment: solAR at 67% against Planet Gravity's 25%. solAR also leads on update cadence (every 3 months vs every 14 months) and device support (5 vs 2). Planet Gravity's advantage is in-app purchases (none vs 1). On price and ads there is nothing between them.

Both are free to download. solAR sells 1 one-off in-app purchase. Planet Gravity asks for nothing beyond the download.

Planet Gravity ships an update every 14 months, solAR every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Planet Gravity | solAR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (2.1K ratings)](https://appshunter.io/ios/app/solar-solar-system-in-ar/id1286558019/reviews)** |
| Number of ratings | — | **2.1K** |
| Positive reviews | 25.0% of reviews | **67.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 43 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Niagara Mobile LLC](https://appshunter.io/developer/1039399999) | [Michael Stoeckli](https://appshunter.io/developer/368788110) |

## What reviewers say

### Planet Gravity

[App page](https://appshunter.io/ios/app/planet-gravity/id995682820)

Explore the gravitational pull of different celestial bodies. Watch pendulums swing and collide under varying gravitational forces, offering a unique physics simulation experience.

**Highlights:** Select different planets for unique gravity, Observe pendulum collisions, Physics-based simulation, Educational planet facts, Interactive entertainment

**Features:** macOS Compatibility

**In-app purchases:** none


### solAR

[App page](https://appshunter.io/ios/app/solar-solar-system-in-ar/id1286558019)

Explore the solar system in 3D and augmented reality. View planets, moons, and the sun in high resolution, placing them in your real-world environment. Adjust distances and scales for an immersive educational experience.

**Highlights:** Augmented reality solar system exploration, High-resolution 3D models of planets and moons, Place celestial bodies in real-world environments, Adjustable planet and moon scale, Interactive learning about space, Intuitive gesture controls

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Activate all Celestial Bodies | $4.99 | one-time |

**What reviewers like**

- 🚀 Realistic and detailed planets
- 👍 Easy to use and intuitive interface
- 🌟 Great AR implementation
- 💡 Helpful for learning about the solar system

**What reviewers complain about**

- 💰 Paid content required to access full features
- 🐛 Bugs and glitches, especially after updates
- ⚠️ Inaccurate scale and proportions of planets/moons
- 🔧 Settings and controls not always intuitive

**Reported bugs**

- Planets not rendering properly in iOS 16
- Purchased content not unlocking correctly
- Frequent crashes and performance issues

**Requested features**

- Add more planets and dwarf planets
- Improve accuracy of scale and orbital mechanics
- Provide more educational information about planets
- Allow free access to full solar system view


## Frequently asked questions

### Is Planet Gravity free?

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

### Is solAR free?

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

### Do Planet Gravity or solAR have ads?

Neither Planet Gravity nor solAR shows ads.

### Which is updated more often, Planet Gravity or solAR?

Planet Gravity ships an update every 14 months, and solAR every 3 months. Most recently, Planet Gravity was updated on November 1, 2026 and solAR on November 6, 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.*