Tray Harder vs Aligner Diary
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Tray Harder
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Tray Harder is the focused, privacy-first wear tracker for clear aligner treatment β Invisalign, SureSmile, ClearCorrect, Spark, Byte, and any other clear aligner system. It helps you hit your 22-hour daily wear goal, stay on schedule, and watch your smile transform tray by tray. WHY TRAY HARDER β’ No account. No cloud. No analytics. Your treatment data, photos, and preferences live only on your phone. β’ A warm, calm aesthetic β built to feel like a quiet companion, not a clinical medical app. β’ Designed by someone who's been through clear aligner treatment. TRACK YOUR WEAR TIME Tap when you take your aligners out, tap when you put them back in. Tray Harder's elegant ring shows your daily progress toward your wear goal, with a live timer when they're out so you know exactly how long you've been on a break. Forgot to track a session? Log past breaks in seconds. STAY ON YOUR TRAY SCHEDULE See which tray you're on, how many days remain until your next switch, and how far along you are. Tray Harder calculates everything from your orthodontist's plan β total trays, days per tray, daily wear goal β and remembers when you started. GENTLE REMINDERS Optional notifications nudge you to put your aligners back in after meals, remind you on tray-switch days the night before, and check in at bedtime. No spam β just the right nudge at the right time. Each reminder is independently toggleable. SEE YOUR PROGRESS β’ A monthly calendar view shows your compliance at a glance β green for goal hit, amber for close, red for missed. β’ Tap any day to see every break session and edit anything that's wrong. β’ A weekly view shows your average wear time and the past 7 days as quick bars. CAPTURE YOUR SMILE STORY β’ Take weekly progress photos with a built-in alignment guide. β’ Compare any two trays side by side with a draggable slider. β’ Watch your full journey play back as an animated timelapse. β’ Import photos you've already taken β they'll be tagged by tray. NEVER MISS AN APPOINTMENT Log upcoming orthodontist visits, see your next one right on the main screen, and get reminders so check-ups never sneak up on you. PRIVATE BY DESIGN There are no accounts to create. No cloud. No tracking. No ads. Delete all your data with one tap. Tray Harder is not medical advice. Always follow your orthodontist's instructions.
Aligner Diary
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Aligner Diary is a private personal tracker designed to make clear-aligner routines easier to follow and treatment progress easier to review. WEAR TIME AT A GLANCE Record when your aligners go in or come out. The app totals todayβs wear and time-out periods and shows how much time remains within your daily goal. CLEAR TRAY-CYCLE PLANNING Set your current tray, total number of trays and change interval. See your current stage, goal streak and next planned tray change from the Today and Progress screens. PHOTO PROGRESS JOURNAL Add teeth photos from the camera or photo library and revisit them by date, so small changes are easier to notice over time. CHECK-INS AND TRENDS Log soreness, fit, attachment concerns, aligner damage, sharp edges and gum bleeding. Trend views help you organize recent observations and decide what to discuss with your dentist or orthodontist. CALENDAR AND EDITABLE HISTORY Use the calendar to review daily wear, photos and check-ins. Edit or delete entries whenever something was recorded incorrectly. REMINDERS, THEMES AND TWO LANGUAGES Use optional wear and tray-change reminders, choose from multiple interface themes, and switch between Simplified Chinese and English. ALIGNER DIARY PRO Optional Pro access adds dentist-ready PDFs, shareable photo comparison cards, advanced reminders and a device privacy lock. Choose monthly, annual or lifetime access and restore eligible Apple purchases. ACCOUNT, PRIVACY AND LOCAL DATA Core aligner records and teeth photos stay on your device. No registration is required to buy or restore Pro through Apple. An optional account can sync membership entitlement; any account can be permanently deleted in the app. Export, preview and restore local backups at any time. Aligner Diary is for personal tracking only. It does not provide medical diagnosis, treatment advice or emergency services. Contact a dentist or orthodontist about persistent pain, damaged aligners, poor fit or other health concerns. Terms of Use: https://alignerdiary.com/terms Privacy Policy: https://alignerdiary.com/privacy Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Tray Harder and Aligner Diary are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Tray Harder sells 1 one-off in-app purchase and Aligner Diary sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.
| Parameter | Tray Harder | Aligner Diary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 β better |
| Further details β not scored | ||
| Size | 55 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Bari Halag | ζδ½³ ζ |
In-app purchases
Tray Harder
- Tray Harder Pro$4.99
Aligner Diary
- Pro Monthly$0.991 Month
- Pro Annual$3.991 Year
- Pro Lifetime$7.99







