# Aligner Reminder vs 22 Hours

The clearest difference is rating: 22 Hours at 3.7 against Aligner Reminder's 1.0. 22 Hours also leads on in-app purchases (none vs 2) and device support (3 vs 1). Aligner Reminder's advantage is update cadence (every 6 days vs every 6 weeks). On price and ads there is nothing between them.

Both are free to download. Aligner Reminder sells 2 in-app purchases, starting at $1.99 per month. 22 Hours asks for nothing beyond the download.

22 Hours holds the better App Store score, 3.7 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Aligner Reminder ships an update every 6 days, 22 Hours every 6 weeks. The most recent releases landed on August 13, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Aligner Reminder | 22 Hours |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/aligner-reminder/id6758906301/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/22-hours-aligner-tracker/id6764899476/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 6 weeks |
| Monetization | Freemium | **Free** |
| Size | 3 MB | 12 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Yuto Akiba](https://appshunter.io/developer/1071752429) | [Gazewing LLC](https://appshunter.io/developer/1895955102) |

## What reviewers say

### Aligner Reminder

[App page](https://appshunter.io/ios/app/aligner-reminder/id6758906301)

This app helps you manage your clear aligner treatment with daily wear reminders and tracking. It supports Live Activities for at-a-glance status updates on your home or lock screen, ensuring consistent adherence to your treatment plan.

**Highlights:** Daily wear management, Wear and removal reminders, Live Activities for status updates, Aligner change tracking, Detailed statistics (Pro), Customizable notifications (Pro), iCloud backup (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $19.99 | per year |


### 22 Hours

[App page](https://appshunter.io/ios/app/22-hours-aligner-tracker/id6764899476)

This app helps users track their clear aligner wear time accurately. It provides simple one-tap logging for aligner insertion and removal, offering insights into daily progress, streaks, and treatment history. The app also includes helpful reminders and progress photo capabilities.

**Highlights:** One-tap aligner wear logging, Daily out-time budget visualization, Streak tracking for goal achievement, Detailed stats and treatment history, Customizable reminders for aligner changes, Progress photo capture and management, Siri integration for hands-free logging

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

**In-app purchases:** none


## Frequently asked questions

### Is Aligner Reminder free?

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

### Is 22 Hours free?

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

### Which has better reviews, Aligner Reminder or 22 Hours?

22 Hours is rated higher. Aligner Reminder averages 1.0 out of 5 from 1 ratings, while 22 Hours averages 3.7 from 3 ratings.

### Do Aligner Reminder or 22 Hours have ads?

Neither Aligner Reminder nor 22 Hours shows ads.

### Which is updated more often, Aligner Reminder or 22 Hours?

Aligner Reminder ships an update every 6 days, and 22 Hours every 6 weeks. Most recently, Aligner Reminder was updated on August 13, 2026 and 22 Hours on September 23, 2026.

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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.*