Best T1D1 Mobile Apps

247+ iOS apps curated and reviewed

3.6 avg rating
20 free apps
Updated September 2026

Looking for free t1d1 mobile apps? 20 of our 247+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top T1D1 Mobile Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1T1D1 MobileT1D1 MobileFree4.5★ (24)NoNoSep 2026
2OneTouch Reveal® appOneTouch Reveal® appFree4.8★ (161K)NoNoSep 2026
3Tandem Mobi® mobile appTandem Mobi® mobile appFree3.3★ (220)NoNoSep 2026
4twiist AID Systemtwiist AID SystemFree4.2★ (45)NoNoSep 2026
5Tandem t:slim Mobile AppTandem t:slim Mobile AppFree3.1★ (2.1K)NoNoSep 2026
6Carb Master for Diabetes T1Carb Master for Diabetes T1Free1.0★ (3)NoNoMay 2026
7KomaDose AI Insulin CalculatorKomaDose AI Insulin CalculatorFree5.0★ (1)YesNoJul 2026
8Diabeter – type 1 diabetesDiabeter – type 1 diabetesFreeNoNoMay 2026

Top Picks for T1D1 Mobile

T1D1 Mobile#1

T1D1 Mobile by T1D1 LLC

Type1 Insulin Calc FDA-Cleared
Editor's Choice
💪 Health & Fitness
4.5(24 ratings)
Free
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This app helps individuals with Type 1 Diabetes calculate insulin doses, track glucose, insulin, and carb intake. It's designed for those using multiple daily injections and newly diagnosed patients, offering essential tools for daily management. The app is FDA-cleared and free to use.

OneTouch Reveal® app#2

OneTouch Reveal® app by LifeScan, Inc.

Your diabetes management app
Strong Contender
🏥 Medical
4.8😊(161K ratings)
Free
OneTouch Reveal® app screenshot 1
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This app helps individuals manage their diabetes by tracking blood glucose readings, food intake, insulin, and activity. It visualizes data to identify patterns, offers personalized insights and reminders, and allows users to share progress with their care team.

What We Love

  • 👍 Easy to use
  • 🚀 Convenient Bluetooth sync
  • 📊 Helpful data tracking and visualization
  • 💊 Good for managing diabetes
  • 🤝 Useful for communicating with doctors

Room to Improve

  • 🐛 Syncing issues with meters and devices
  • ⏱️ Slow app performance after updates
  • 🔒 Privacy concerns around data sharing
  • 🔋 Short battery life for meters
  • 🤔 Confusing or inflexible meal logging
Tandem Mobi® mobile app#3
3.3😐(220 ratings)
Free
Tandem Mobi® mobile app screenshot 1
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This app controls a small, durable automated insulin delivery system. It offers convenience and discretion, allowing users to manage their diabetes directly from a compatible iPhone. Prescription required for use.

What We Love

  • 🚀 Great for reducing high and low blood glucose levels
  • 🚀 Helps keep you in range
  • 🚀 Smaller and lighter pump
  • 👍 Easy to use app
  • 👍 Mostly intuitive to use
  • 👍 Integrated app and pump control
  • 👍 Improved A1C levels

Room to Improve

  • 🐛 Frequent connection issues with CGM
  • 🐛 Graph data disappearing
  • 🐛 Unreliable app performance
  • 🔕 Excessive and repetitive notifications
  • 🔕 Inability to customize notifications
  • 🔕 Loud alarms that can't be silenced
  • 🔕 Inconvenient to clear alarms
  • 🔕 Lack of total daily dose information in app

More T1D1 Mobile apps to explore

FAQ about T1D1 Mobile

What are the best t1d1 mobile apps for iPhone?
T1D1 Mobile tops our t1d1 mobile apps ranking as of September 2026, with a 4.5-star average from 24 App Store ratings, and it's free to download.
Yes — 20 of the top t1d1 mobile apps we rank are free to download, including T1D1 Mobile and OneTouch Reveal® app.
T1D1 Mobile has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 247+ t1d1 mobile apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
T1D1 Mobile is an FDA-cleared medical device designed to help individuals with Type 1 Diabetes calculate insulin doses, track glucose, insulin, and carb intake. It provides essential tools for daily diabetes management, especially for those using multiple daily injections.
The app is intended for people with Type 1 Diabetes aged 2 years and older who use multiple daily injections of rapid-acting insulin. This includes newly diagnosed individuals, those working with school nurses, and caregivers assisting with diabetes management.