# HabitStep vs UU Mark

The clearest difference is in-app purchases: UU Mark at none against HabitStep's 3. UU Mark also leads on iOS requirement (12.0 vs 18.0). On price there is nothing between them.

Both are free to download. HabitStep sells 3 in-app purchases, starting at $0.59 per month. UU Mark asks for nothing beyond the download.

## The numbers

| Metric | HabitStep | UU Mark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Every 2 days | — |
| Size | 78 MB | 28 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [鸿宾 吴](https://appshunter.io/developer/1833675926) | [帆 张](https://appshunter.io/developer/1190211990) |

## What reviewers say

### HabitStep

[App page](https://appshunter.io/ios/app/habitstep/id6756199075)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Targets(monthly) | $0.59 | per month |
| No Ads | $0.99 | one-time |
| Unlimited Targets | $2.59 | one-time |


### UU Mark

[App page](https://appshunter.io/ios/app/uu-mark/id6759787169)

**In-app purchases:** none


## Frequently asked questions

### Is HabitStep free?

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

### Is UU Mark free?

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

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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.*