# Keep Your Promises vs Antigravity

The clearest difference is in-app purchases: Antigravity at none against Keep Your Promises's 3. Keep Your Promises's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Keep Your Promises sells 3 in-app purchases, starting at $6.99 per month. Antigravity asks for nothing beyond the download.

## The numbers

| Metric | Keep Your Promises | Antigravity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 61 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rolando Barbella](https://appshunter.io/developer/1816312184) | [Owen Taylor](https://appshunter.io/developer/1888816695) |

## What reviewers say

### Keep Your Promises

[App page](https://appshunter.io/ios/app/keep-your-promises/id6746349132)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Promises Pro Monthly | $6.99 | per month |
| Promises Pro Yearly | $69.99 | per year |
| Go Pro | $24.99 | one-time |


### Antigravity

[App page](https://appshunter.io/ios/app/antigravity-procrastination/id6762059599)

**In-app purchases:** none


## Frequently asked questions

### Is Keep Your Promises free?

Keep Your Promises is free to download, with in-app purchases available.

### Is Antigravity free?

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

### Do Keep Your Promises or Antigravity have ads?

Neither Keep Your Promises nor Antigravity shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*