# Planet Gravity vs AR Solar System PRO

The clearest difference is price: Planet Gravity at Free against AR Solar System PRO's $0.99. Planet Gravity also leads on update cadence (every 14 months vs every 46 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Planet Gravity is free to download; AR Solar System PRO costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Planet Gravity ships an update every 14 months, AR Solar System PRO every 46 months. The most recent releases landed on June 7, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Planet Gravity | AR Solar System PRO |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ar-solar-system-pro/id1327934893/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 46 months |
| Monetization | **Free** | Paid |
| Size | 5 MB | 63 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Niagara Mobile LLC](https://appshunter.io/developer/1039399999) | [Gianluca Natalini](https://appshunter.io/developer/348380792) |

## 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


### AR Solar System PRO

[App page](https://appshunter.io/ios/app/ar-solar-system-pro/id1327934893)

Explore the solar system in augmented reality. Place planets in your environment, walk among them, and learn detailed facts. Interact with celestial bodies to view them from all angles.

**Highlights:** Augmented reality planet placement, Interactive 3D planet models, Real-time planet rotation and revolution, Detailed astronomical data for each planet, Virtual space travel experience, Gesture-based interaction

**In-app purchases:** none


## Frequently asked questions

### Is Planet Gravity free?

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

### Is AR Solar System PRO free?

AR Solar System PRO costs $0.99, with no in-app purchases.

### Do Planet Gravity or AR Solar System PRO have ads?

Neither Planet Gravity nor AR Solar System PRO shows ads.

### Which is updated more often, Planet Gravity or AR Solar System PRO?

Planet Gravity ships an update every 14 months, and AR Solar System PRO every 46 months. Most recently, Planet Gravity was updated on June 7, 2026 and AR Solar System PRO on September 12, 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.*