Dental Stack vs 22 Hours
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dental Stack
This app helps users track their clear aligner treatment, ensuring they meet daily wear time goals and remember to change aligners on schedule. It allows for progress photo capture and secure sharing with doctors, providing insights and keeping users motivated throughout their orthodontic journey.
- Track daily aligner wear time
- Reminders for aligner changes
- Capture and share progress photos
- Connect and communicate with doctor
- View treatment timeline and milestones
- Detailed aligner usage insights
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Stay on top of your clear aligner treatment with Dental Stack: Track your daily wear time, ensure timely aligner changes, easily share progress with your doctor, and much more. Are you having a hard time building the habit of wearing your aligners every day? Do you find it hard to remember your next aligner change date? Are you losing motivation on your journey to your perfect smile? Is your clear aligner treatment going off-course? Don’t worry, Dental Stack is here to solve all of your problems and help you stay perfectly on track and get you through your clear aligner treatment with ease and comfort. Dental Stack is built for patients to track clear aligner treatments across ALL ALIGNER BRANDS. So, connect with your doctor or invite them to track your clear aligner treatment. Key features: TRACK YOUR DAILY ALIGNER WEAR Say goodbye to sticky notes, calendar reminders, and alarm clocks: Achieve 22-hour wear time with precise tracking and stay motivated with our captivating smile countdown. NEVER FORGET TO CHANGE YOUR ALIGNERS With Dental Stack, you’ll get personalized reminders to change your aligners as per your plan - always keeping you on track with your treatment plan. CAPTURE AND SHARE PROGRESS PHOTOS Capture treatment progress photos directly in the app. Share these with your doctor to ensure personalized guidance even between appointments. STAY CONNECTED WITH YOUR DOCTOR Ask questions, seek guidance and have your concerns addressed in a secure environment. With Dental Stack, your aligner treatment journey will never be lonely or isolating. KEEP AN EYE ON YOUR TREATMENT TIMELINE View milestones, track progress, and get a clear overview of your treatment plan, ensuring you’re always on the right path to your perfect smile. STAY ACCOUNTABLE WITH ALIGNER INSIGHTS Track and review detailed statistics, such as daily and weekly wear duration, empowering you to stay accountable and achieve the best results from your aligner treatment. Please note that this app is intended to be used under the direction and supervision of a licensed dentist. You can easily connect with your treating Dentist or invite them to join you on this journey of tracking your aligner treatment progress. Dental Stack serves as a platform where your dentist will fill out all the necessary treatment information to ensure accurate tracking. Remember, this app is a tool to enhance your treatment experience, so if you have any questions or concerns about your treatment, don't hesitate to reach out to your dentist for guidance. Start your aligner journey with Dental Stack today and achieve that perfect smile you've always wanted!
22 Hours
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.
- 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
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22 Hours is a quiet, focused tracker for people on a clear aligner plan who are tired of guessing whether they hit today's goal. One tap when your aligners go in. One tap when they come out. 22 Hours handles the rest. Where you stand, at a glance • Hours worn today, out-time left, and whether you are on track. Thinking in time left out is easier than counting hours worn. Streaks that actually mean something • Hit your daily goal and a streak builds. Miss it and it resets. Your current streak and your longest ever, always visible. Stats and history • A compliance ring for every day of treatment, plus weekly average, lifetime hours, a 14-day chart and your weekday pattern. Tap any day to see and edit its sessions. Reminders, not nagging • A heads-up when you go past your out-budget, never a guilt trip about a long lunch or an unexpected meeting. Switch-day routine • A reminder the night before each tray switch and a backup the next morning, optionally kept in sync with your iOS Calendar. Progress photos • Unlimited photos tagged to your aligner number, saved to a 22 Hours album in your Photos library. Yours to keep even if you uninstall. Siri • Say the word and your aligners are logged, in or out, without opening the app. Nothing to set up. Set up in under a minute • Your treatment type, aligner count, switch schedule and daily goal. Already a few months in? Backfill from day one. Your data is yours • Synced privately across your devices via iCloud, exportable any time. No ads. 22 Hours Pro, if you want it Everything above is free, and stays free. Pro adds four things: • Apple Watch. Log put-in and take-out from your wrist, and add a complication to your watch face. • Live Activities and widgets. Today's hours and your streak on your Home Screen, and a countdown on your Lock Screen while your aligners are out. • Key Insights. Your habits, your best and toughest days, and a projected finish date. • Key Events. Appointments and milestones on one timeline with your wear history. Your wear goal is personal. We will be with you on your journey to that great smile. Subscription details • 22 Hours Pro is available as a monthly or yearly subscription, or as a one-time lifetime purchase. • The yearly plan starts with a 14-day free trial. • Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in your App Store account settings. Privacy Policy: https://gazewing.com/22hours/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: 22 Hours at 3.7 against Dental Stack's 1.0. 22 Hours also leads on device support (3 vs 1) and ratings volume (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
Dental Stack ships an update every 4 weeks, 22 Hours every 6 weeks. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.
| Parameter | Dental Stack | 22 Hours |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 3.7 (3 ratings) — better |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 4 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 72 MB | 12 MB |
| Age rating | 12+ | 4+ |
| Developer | DentalStack | Gazewing LLC |
Customer experience
Dental Stack
22 Hours
In-app purchases
Dental Stack
No in-app purchases
22 Hours
No in-app purchases





