T1D1 Mobile is made and published by T1D1. AppBrain is an independent app data site and isn't affiliated with T1D1. The app name, icon, screenshots and description belong to T1D1 and are shown as published on the App Store.
AppBrain's verdict
Loved by users- Rating on App Store
- 4.67
- 113 ratings
- Last updated
- October 4, 2026
Users love it: 4.7 stars from 113 ratings.
Rankings
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Releases
Updates seen on the App Store- Version
- 20.2
- Launched
- October 2025
No changelog data
User feedback
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 39.0 MB
- Content rating
- Medium
Technologies used by T1D1 Mobile
About the app and developer
About T1D1 Mobile
T1D1 Mobile is a health & fitness app developed by T1D1.
User Ratings
T1D1 Mobile is rated 4.67 out of 5 stars. The rating is based on 110 ratings.
App Information
T1D1 Mobile is freely available from the App Store. The app size is 38.98 MB. The latest version available is 20.2. The last update was on October 4, 2026.
Technical Requirements
The app has a content rating of Medium Maturity. The app has been available on the App Store since October 2025.
Developer information for T1D1
Address:
Frequently asked questions about T1D1 Mobile
Is T1D1 Mobile free?
Yes. T1D1 Mobile is free on the App Store.
Is T1D1 Mobile still available?
Yes. T1D1 Mobile is on the App Store, and the last update we saw was on October 4, 2026.
How large is T1D1 Mobile?
T1D1 Mobile is 38.98 MB.
Is T1D1 Mobile suitable for children?
App Store gives T1D1 Mobile a medium maturity rating, so it is not meant for young children.
How do people rate T1D1 Mobile?
T1D1 Mobile scores 4.67 out of 5 stars, from 113 ratings on the App Store.
Who made T1D1 Mobile?
T1D1 Mobile was developed by T1D1. It is listed in the health & fitness category on the App Store.
What are the best alternatives to T1D1 Mobile?
People looking at T1D1 Mobile also look at these health & fitness apps: GlucoSense: Diabetes Health, Level One: A Diabetes Game, Bolus Guide, twiist AID System, Enhance-d: Diabetes & Exercise.
Store listing
By T1D1, from the App Store
Description by T1D1 Written by the developer, not by AppBrain. Click to read.
100% free - No subscription and no in-app purchases!
Who is it for? People with Type 1 Diabetes who…
-Need help calculating insulin!
-Are newly diagnosed with Type 1 Diabetes
-Use multiple daily injections (MDI) of short-acting insulin
-Work with School nurses
-Have caregivers who assist in diabetes management
-Want to send their data to healthcare providers
-Are taking a break from using a pump
-Count carbs but are NOT on a sliding scale
T1D1 implements the bolus dosing calculation as indicated by the American Diabetes Association standards of Care (https://diabetesjournals.org/care/issue/48/Supplement_1) without modifications.
T1D1 is intended for people with Type 1 Diabetes aged 2 years and older who use multiple daily injections (MDI) of rapid-acting insulin. The user can calculate insulin doses based on user-entered data, track glucose, insulin, and carb intake, and share information with their healthcare team.
Designed to be simple and accessible, T1D1 makes it easier for patients and families to manage the daily math of diabetes.
About the creator:
My name is Drew Mendelow. I was 13 years old when I was diagnosed with Type 1 Diabetes in 2020. I remember feeling so overwhelmed when I was newly diagnosed and wanted to create an app with just the essentials you need from day 1 of diagnosis. My aim is to make it simple, reliable, and accessible to all… for free! Hope this app makes your life just a little easier.
Disclaimer:
T1D1 is an FDA-cleared, Class II medical device for over-the-counter use. Before use, a healthcare professional must provide your target blood glucose values, insulin-to-carbohydrate ratios, and correction factor (aka insulin sensitivity factor) to be programmed into the app.
While the app is designed to support insulin dosing for individuals with Type 1 Diabetes Mellitus (T1DM) from age 2 and older, for children under 13, a parent or legal guardian must create and manage the account on the child’s behalf.
Legal Manufacturer:
Comerge AG
Bubenbergestrasse 1
Zurich, 8045
Switzerland