22 Hours: Aligner Tracker
Clear aligner wear timer
About
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.
What's New in 22 Hours
2.2
September 29, 2026
A few things you'll notice in version 2.2. NEW • Aligner Wear Report (Pro). A PDF of your wear time to bring to your orthodontist, one page or the full record. Swipe past Insights on the Stats tab. • Morning Recap (Pro). Open the app in the morning and see how yesterday went before the new day starts. • Compare any two aligners (Pro). Their photos side by side, with how you wore each one. Swipe past the grid on the Snaps tab. • Progress Photo Story (Pro). Read everything that happened between the two aligners you compare. Swipe past Compare on the Snaps tab. • The camera finds your teeth (Pro). Hold still and it spots your mouth, counts down, takes the photo itself and frames it on your teeth. • Full Screen Alarm (Pro). One out-of-aligners nudge can sound like an alarm clock instead. Off unless you turn it on, in Settings under Reminders. iOS 26.1 or later. • Photo days on the calendar. A small camera on a day's ring marks a progress photo. Tap the day to open it. IMPROVED • Switching tabs is faster, and the app no longer slows down as your treatment goes on. • Times, decimals, percentages and the start of the week follow your phone's region. • Key Events reads as a timeline, and every row that opens something is a card (Pro). • Your Apple Watch sends its own out-of-aligners reminders when your iPhone isn't nearby (Pro). • A tray that is short on wear asks before it switches, and Wear longer opens on the days that could use it. FIXED • Out-time is counted correctly across midnight, and out-time left never runs past the end of the day. • Widgets, the Live Activity and your watch update when another device logs wear (Pro). • Taps on your Apple Watch arrive in the order you made them, even away from your iPhone or after a restart (Pro). • Two devices on the same iCloud account no longer double-count an aligner or lose a wear session. • A restore brings back your appointments. • A leftover open session can no longer eat into recorded wear. • The Calendar grades each day against the goal you had that day. • Every duration rounds down, so figures agree from screen to screen.
MoreFAQ
How does 22 Hours track aligner wear time?
22 Hours uses a simple one-tap system. You tap when you put your aligners in and tap again when you take them out. The app then automatically calculates your wear time and out-time.
Can I see my progress with 22 Hours?
Yes, 22 Hours offers detailed stats and history. You can view a calendar with compliance rings, weekly averages, compliance percentages, lifetime hours, and a 14-day wear chart.
Does 22 Hours send reminders for aligner changes?
Yes, 22 Hours provides gentle reminders for your tray switch routine. It sends a notification the night before and a backup the next morning, and can optionally sync switch days to your iOS Calendar.
Can I take progress photos with 22 Hours?
Absolutely. 22 Hours allows you to capture unlimited progress photos tagged to your current aligner number. You can also bulk import existing photos, and all are saved to a dedicated album.
Is my data safe with 22 Hours?
Your data is synced privately across your devices via iCloud. You can also export your full history at any time and restore from backup when switching devices.
Does 22 Hours have ads?
No, 22 Hours is ad-free. The app is designed for a focused and uninterrupted user experience, ensuring no advertisements interfere with your tracking.
What devices does 22 Hours support?
22 Hours is available for iPhone and iPad, ensuring you can track your aligner wear on your preferred Apple devices.
How often is 22 Hours updated?
The latest version of 22 Hours is 1.1, which was last updated on July 16, 2026. This indicates regular maintenance and potential feature additions.
