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T1D1 Mobile

T1D1 Mobile

Type1 Insulin Calc FDA-Cleared

24 ratings
25 reviews
💪 Health & Fitness
🏥 Medical
Free

Details

  • Released
  • Updated
  • October 21, 2025
  • March 30, 2026

Developer

T1D1 LLC
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About

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.

✓Insulin dose calculation
✓Glucose tracking
✓Insulin intake tracking
✓Carb intake tracking
✓Data sharing with healthcare providers
✓FDA-cleared medical device
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What's New in T1D1 Mobile

20.1.1

March 30, 2026

Added a resource page. Minor back-end updates

User reviews

Most RecentHighest RatedLowest Rated

Best app around for diabetes

This is the best app available for diabetes for calculating the amount of insulin you need based on your carbohydrates. It’s quick and simple.
iCloudMarkiCloudMark

Everything I need in order to track my sons insulin and carbs

Great app! So helpful and gives me everything I need in one spot for easy tracking
Dee!$Dee!$

❤️Love the App!

Has been very useful 😊
LHtype1LHtype1

it’s a life saver

i love it and it’s the only way i know how much insulin to give!😭🤣 way easier than doing the math out or trying to figure it out using a regular calculator
same imasame ima

Great T1D App

I have recently switched to shots after about a decade of using a pump.
It's been super helpful in the transition from a pump that does a lot of the math to shots. I love that the app tells you how long it’s been since you’ve given yourself some insulin. It would be great if you could set how long your insulin on board lasts and the app could at least help or suggest a calculation that accounts for IOB. But it’s easy enough to just calculate IOB on your own. In summary I love this app, it has been super helpful.
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Diabetic RunnerDiabetic Runner
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Developer apps

Digest Quest
Digest Quest

by T1D1 LLC

💪 Health & Fitness

(2)

Free
See developer apps

FAQ

What is T1D1 Mobile used for?

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.

Is T1D1 Mobile free to use?

Yes, T1D1 Mobile is 100% free, with no subscriptions or in-app purchases required. The developer aims to make this essential tool accessible to all.

Who is the target audience for T1D1 Mobile?

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.

Does T1D1 Mobile require any setup from a healthcare professional?

Yes, before use, a healthcare professional must provide your target blood glucose values, insulin-to-carbohydrate ratios, and correction factor to be programmed into the app. T1D1 Mobile is a Class II medical device that requires professional input for accurate personalization.

Can children use T1D1 Mobile?

T1D1 Mobile is designed for individuals with Type 1 Diabetes from age 2 and older. For children under 13, a parent or legal guardian must create and manage the account on their behalf.

How often is T1D1 Mobile updated?

The latest version of T1D1 Mobile is 20.1.0, and it was last updated on January 27, 2026. This indicates a commitment to ongoing development and improvements.

What devices does T1D1 Mobile support?

T1D1 Mobile is supported on iPhones and iPods. It is designed to be accessible on popular Apple mobile devices.

What is the age rating for T1D1 Mobile?

T1D1 Mobile has an age rating of 12+. This is likely due to the nature of the medical information and calculations involved in managing Type 1 Diabetes.