# Dooo vs UU Mark

The clearest difference is in-app purchases: UU Mark at none against Dooo's 2. UU Mark also leads on iOS requirement (12.0 vs 18.0). Dooo's advantage is device support. On price there is nothing between them.

Both are free to download. Dooo sells 2 in-app purchases, starting at $0.99 per year. UU Mark asks for nothing beyond the download.

## The numbers

| Metric | Dooo | UU Mark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/dooo-habit-tracker/id6749438072/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 days | — |
| Monetization | Freemium | — |
| Size | 17 MB | 28 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | **iPhone, iPad, Apple Watch** | — |
| Age rating | 4+ | 4+ |
| Developer | [Lovely Duck, LLC](https://appshunter.io/developer/1505160193) | [帆 张](https://appshunter.io/developer/1190211990) |

## What reviewers say

### Dooo

[App page](https://appshunter.io/ios/app/dooo-habit-tracker/id6749438072)

Build positive habits effortlessly with this intuitive tracker. Customize goals, view progress with detailed statistics, and stay organized with a to-do list. Syncs across devices and offers a focus mode for enhanced productivity.

**Highlights:** Customizable habit names, icons, and colors, Flexible goal setting with multiple check-in frequencies, Detailed statistics and check-in calendar, To-Do List functionality, Focus mode, iCloud backup and cross-device sync, Data export

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $0.99 | per year |
| One-Time Purchase | $2.99 | one-time |


### UU Mark

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

**In-app purchases:** none


## Frequently asked questions

### Is Dooo free?

Dooo 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.*