# Planet Gravity vs Galaxy Gallery

The clearest difference is in-app purchases: Planet Gravity at none against Galaxy Gallery's 6. Planet Gravity also leads on ads (none vs shown). Galaxy Gallery's advantage is update cadence (monthly vs every 14 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Galaxy Gallery sells 6 in-app purchases, starting at $1.99 per month. Planet Gravity asks for nothing beyond the download.

Planet Gravity ships an update every 14 months, Galaxy Gallery monthly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Planet Gravity | Galaxy Gallery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (8 ratings)](https://appshunter.io/ios/app/galaxy-gallery-space-and-focus/id1662263674/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 97 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Niagara Mobile LLC](https://appshunter.io/developer/1039399999) | [Dinh Bao Thang Duong](https://appshunter.io/developer/1529449646) |

## 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


### Galaxy Gallery

[App page](https://appshunter.io/ios/app/galaxy-gallery-space-and-focus/id1662263674)

Explore planets in real-time 3D with augmented reality. Interact with celestial bodies, trigger environmental effects, and learn fascinating facts through optional voice narration. Build a personalized gallery of your favorite planets.

**Highlights:** Real-time 3D planet exploration, Augmented Reality (AR) placement, Interactive environmental effects, Optional voice narration for facts, Kid-friendly controls with haptics, Personalized planet gallery

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Galaxy Plus Monthly | $1.99 | per month |
| Kind Tip | $0.99 | one-time |
| Great Tip | $1.99 | one-time |
| Amazing Tip | $3.99 | one-time |
| Outrageous Tip | $6.99 | one-time |
| Galaxy Plus Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is Planet Gravity free?

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

### Is Galaxy Gallery free?

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

### Do Planet Gravity or Galaxy Gallery have ads?

Galaxy Gallery shows ads; Planet Gravity does not.

### Which is updated more often, Planet Gravity or Galaxy Gallery?

Planet Gravity ships an update every 14 months, and Galaxy Gallery monthly. Most recently, Planet Gravity was updated on November 1, 2026 and Galaxy Gallery on November 7, 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.*