SmileDiary - Aligner Tracker
Clear Aligner & Retainer Timer
About
This app helps you track your clear aligner treatment privately and securely. It offers a smart wear timer, visual calendar, progress photos, and detailed insights into your compliance, all without collecting your personal data.
What's New in SmileDiary
1.0.8
September 4, 2026
This release polishes the English experience: · Full English throughout. Export Data, Import Data, the iCloud sync panel, the photo save screen and its editing sliders still showed Chinese text in places — all of it is now translated. · Dates now follow your in-app language. Subscription renewal dates, iCloud sync times and time-lapse date ranges used to follow your phone's system language instead, so they stayed in Chinese even with the app set to English. · Two English layout fixes: photo editing slider labels no longer wrap onto two lines, and the daily goal sheet no longer cuts off its hint text. · The Today tab drops one redundant database query, so it refreshes with less work. As always, your treatment data stays on your device. Questions or ideas? Reach us from Settings.
MoreSubscription plans
SmileDiary Pro Annual
Unlock all Pro features, best annual value
In-App Purchases
$19.99
SmileDiary Pro Lifetime
One-time purchase, unlock Pro forever
FAQ
Does SmileDiary have ads?
No, SmileDiary is designed to be ad-free, providing a clean and focused experience without any advertisements or disruptive upsells.
How much does SmileDiary cost?
The basic version of SmileDiary is free to use. For advanced features like home and lock screen widgets, and Apple Watch integration, a subscription to SmileDiary Pro is available.
What are the SmileDiary Pro subscription options?
SmileDiary Pro offers a monthly subscription for $2.99 with a 7-day free trial, and an annual subscription for $12.99 with a 7-day free trial.
Is my data safe with SmileDiary?
Yes, SmileDiary prioritizes privacy. Your data stays on your device, and the app does not collect, track, upload, or sell any personal information.
Can I use SmileDiary without an account?
Absolutely. SmileDiary requires no registration, email, or commitment to start tracking your aligner journey immediately.
What devices does SmileDiary support?
SmileDiary is available on iPhone and Apple Watch. iCloud Sync allows for seamless use across all your Apple devices with the Pro subscription.
How often is SmileDiary updated?
The latest version, 1.0.4, was released on May 19, 2026, indicating regular updates to improve functionality and user experience.
What are the benefits of SmileDiary Pro?
SmileDiary Pro unlocks home and lock screen widgets for at-a-glance progress, a full Apple Watch app for tracking on your wrist, and iCloud Sync for seamless data flow across Apple devices.
