# 22 Days vs MDF

The clearest difference is in-app purchases: MDF at none against 22 Days's 1. MDF also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 22 Days sells 1 one-off in-app purchase. MDF asks for nothing beyond the download.

22 Days ships an update every 2 months, MDF every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 22 Days | MDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (61 ratings)](https://appshunter.io/ios/app/22-days-habit-tracker/id1474006757/reviews)** | — |
| Number of ratings | **61** | — |
| Positive reviews | 57.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 82 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Kovalyov](https://appshunter.io/developer/718333197) | [Shlomi Saadon](https://appshunter.io/developer/1758976530) |

## What reviewers say

### 22 Days

[App page](https://appshunter.io/ios/app/22-days-habit-tracker/id1474006757)

This app helps you build new habits or break old ones by tracking your progress over a 22-day cycle. It allows you to mark daily tasks as complete, split habits into subtasks, and receive reminders. Sync your progress across devices and organize habits with groups for a streamlined experience.

**Highlights:** Daily habit tracking, Mark tasks as done, Habit subtasks, Daily notifications, Apple Watch integration, Habit grouping, Cross-device sync

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $1.99 | one-time |


### MDF

[App page](https://appshunter.io/ios/app/mdf/id6753005898)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 22 Days free?

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

### Is MDF free?

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

### Do 22 Days or MDF have ads?

22 Days shows ads; MDF does not.

### Which is updated more often, 22 Days or MDF?

22 Days ships an update every 2 months, and MDF every 5 weeks. Most recently, 22 Days was updated on October 24, 2026 and MDF on October 25, 2026.

---

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