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T1D1 Mobile

T1D1 Mobile

Type1 Insulin Calc FDA-Cleared

24 ratings
20 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

Auto correct feature👍🏼

Huge fan of the auto corrective dosing in case of low blood sugar!
🍭👍🏼👍🏼🍭👍🏼👍🏼

Great app

This is what I’ve been looking for!
KyarnbugKyarnbug

Customer service

Fast and effective customer service.
EAD4EAD4

Has Shortcomings

T1D1 does a fine job estimating the amount of insulin you need (based on doctor recommended parameters) but it lacks the ability to estimate the amount of active insulin in your system which is a HUGE shortcoming. Without that you run the of overdosing yourself with insulin. If they add this feature it would be a much better (and safer) App.
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dfwjrdfwjr

Very Helpful App

Some kindhearted people with greats hearts are behind this app. This app has helped streamline so many aspects of being new to T1D for my son and me. And any questions I had were answered promptly, as well as any suggestions I had were met with openness to make changes that benefit us all.
Servantgirl816Servantgirl816
See 15 more reviews

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.