# 习惯主义 vs UU Mark

The clearest difference is in-app purchases: UU Mark at none against 习惯主义's 3. UU Mark also leads on iOS requirement (12.0 vs 17.0). 习惯主义's advantage is device support. On price there is nothing between them.

Both are free to download. 习惯主义 sells 3 in-app purchases, starting at $0.99 per month. UU Mark asks for nothing beyond the download.

## The numbers

| Metric | 习惯主义 | UU Mark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6464384641/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 2 days | — |
| Size | 1 MB | 28 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [文丰 邓](https://appshunter.io/developer/1543612991) | [帆 张](https://appshunter.io/developer/1190211990) |

## What reviewers say

### 习惯主义

[App page](https://appshunter.io/ios/app/id6464384641)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly (Auto Renew) | $0.99 | per month |
| Yearly (Auto Renew) | $6.99 | per year |
| Lifetime (Pay Once) | $9.99 | one-time |


### UU Mark

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

**In-app purchases:** none


## Frequently asked questions

### Is 习惯主义 free?

习惯主义 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.*