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T1D1 Mobile

T1D1 Mobile

Type1 Insulin Calc FDA-Cleared

120 ratings
39 reviews
💪 Health & Fitness
🏥 Medical
Free

Details

Released
October 21, 2025
Updated
October 4, 2026

Developer

T1D1
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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

20.2

October 4, 2026

This is a big one... Highly anticipated Spanish language capability is here! This release also adds an optional Afrezza® inhaled insulin dose display, converted from the existing mealtime insulin calculation. Both features can be turned on or off in Settings.

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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.
IiCloudMark

gufcf

It has made managing my diabetes more easy and I love it
Ggufcf

So far so good

just started using it today, so far the output is the same as another bolus calculator.
BB-Resourceful

T1D1

Great App for diabetics
BMBarb in MD

Newbie

I’m new to this app. Seems to be good. I’m keeping my fingers crossed!
FFluverdoo
See 34 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.