Comparison

OrthoFlow vs Aligner Diary

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

OrthoFlow

Features
Read full description

Clear aligner treatment requires discipline and consistency. OrthoFlow is your dedicated digital assistant designed to keep your treatment on track.

About

Aligner Diary

Features
Read full description

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 today’s 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

OrthoFlow4 screens
Aligner Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: OrthoFlow at none against Aligner Diary's 3. Aligner Diary's advantage is update cadence (weekly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Aligner Diary sells 3 in-app purchases, starting at $0.99 per month. OrthoFlow asks for nothing beyond the download.

UpkeepUpdate frequency

OrthoFlow ships an update every 3 months, Aligner Diary weekly. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

Scorecard2 real differences Β· 4 level
OrthoFlow versus Aligner Diary: the parameters behind the verdict, then further details
ParameterOrthoFlowAligner Diary
PriceFreeFree
Update frequencyEvery 3 monthsWeekly β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 β€” better
Further details β€” not scored
Size75 MB47 MB
Age rating12+4+
DeveloperDevinbi思佳 李

In-app purchases

None

OrthoFlow

No in-app purchases

3 purchases

Aligner Diary

Subscriptions2
  • Pro Monthly$0.991 Month
  • Pro Annual$3.991 Year
One-time1
  • Pro Lifetime$7.99

Questions

Is OrthoFlow free?
OrthoFlow is free to download, with no in-app purchases.
Is Aligner Diary free?
Aligner Diary is free to download, with in-app purchases available.
Do OrthoFlow or Aligner Diary have ads?
Neither OrthoFlow nor Aligner Diary shows ads.
Which is updated more often, OrthoFlow or Aligner Diary?
OrthoFlow ships an update every 3 months, and Aligner Diary weekly. Most recently, OrthoFlow was updated on October 15, 2026 and Aligner Diary on October 5, 2026.

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