# Robot Dog Training Academy vs Gravity

The clearest difference is in-app purchases: Robot Dog Training Academy at none against Gravity's 3. Gravity's advantage is update cadence (daily vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Gravity sells 3 one-off in-app purchases. Robot Dog Training Academy asks for nothing beyond the download.

Robot Dog Training Academy ships an update every 6 months, Gravity daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Robot Dog Training Academy | Gravity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Size | 6 MB | 66 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [幼勤 林](https://appshunter.io/developer/1886848825) | [IVF Parentium](https://appshunter.io/developer/6786201592) |

## What reviewers say

### Robot Dog Training Academy

[App page](https://appshunter.io/ios/app/robot-dog-training-academy/id6761261211)

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

**In-app purchases:** none


### Gravity

[App page](https://appshunter.io/ios/app/gravity-lander/id6789910779)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4 Cores + 300 Credits | $0.99 | one-time |
| 9 Cores + 800 Credits | $4.99 | one-time |
| 16 Cores + 1,400 Credits | $9.99 | one-time |


## Frequently asked questions

### Is Robot Dog Training Academy free?

Robot Dog Training Academy is free to download, with no in-app purchases.

### Is Gravity free?

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

### Do Robot Dog Training Academy or Gravity have ads?

Neither Robot Dog Training Academy nor Gravity shows ads.

### Which is updated more often, Robot Dog Training Academy or Gravity?

Robot Dog Training Academy ships an update every 6 months, and Gravity daily. Most recently, Robot Dog Training Academy was updated on October 24, 2026 and Gravity on October 25, 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.*