AppCorpus
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T1D1 Mobile

by T1D1

iPhone

Active Last checked 7 Aug 2026

Quick verdict

What it is
Store information collected; independent summary not yet available.
At a glance
  • Free to download

Categories and search queries

Official categories

AppCorpus categories

Key functions

Function Availability Access Scope Evidence
Free app Yes Free Store published

Screens

App Store

5 store screenshots

T1D1 Mobile iphone screenshot 1
T1D1 Mobile iphone screenshot 2
T1D1 Mobile iphone screenshot 3
T1D1 Mobile iphone screenshot 4

Pricing & paywalls

App Store

  • Free

Ratings & reviews

App Store

4.4 47 ratings · App Store

  1. 5/5Great 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.

    Diabetic Runner · 7 Aug 2026

  2. 5/5Great App and very useful

    As an adult who has been pumping for years, I worry about being hospitalized and not able to use my Omnipod. This app would be great for hospital staff or caregivers, that may not know how to calculate insulin for the individual. Be sure all numbers are correct especially correction factors. I hope it takes insulin onboard as people use it. Great idea.

    FloraDora5753 · 7 Aug 2026

  3. 5/5Very 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.

    Servantgirl816 · 7 Aug 2026

  4. 5/5Must have for anyone on MDI

    Finally an app to help calculate insulin! As a parent, I can share this account with my family. And, best part is that I can easily send to our doctor so she can help us adjust our numbers as needed. Thank you for doing the legwork to get this app out there!

    T1Dmamma · 7 Aug 2026

  5. 5/5Wonderful app

    App was recommended to me by diabetic educator. I find it very helpful to calculate my bolus injections. Two simple inputs for each calculation give me an accurate dose. I would note that it’s important to go into the settings and set your desired target glucose, correction factor, and carb ratio.

    Pattiathome · 7 Aug 2026

Privacy & accessibility

App Store

Privacy

  • Data Linked to You — App Functionality — Contact Info — Email Address Developer declared
  • Data Linked to You — App Functionality — Contact Info — Name Developer declared
  • Data Linked to You — Other Purposes — Health & Fitness — Health Developer declared
  • Data Linked to You — Other Purposes — Identifiers — Device ID Developer declared
  • Data Linked to You — Other Purposes — Identifiers — User ID Developer declared
  • Data Linked to You — Other Purposes — User Content — Other User Content Developer declared
  • Data Linked to You — Contact Info Developer declared
  • Data Linked to You — Health & Fitness Developer declared
  • Data Linked to You — Identifiers Developer declared
  • Data Linked to You — User Content Developer declared
  • Data Not Linked to You — Analytics — Diagnostics — Crash Data Developer declared
  • Data Not Linked to You — Analytics — Diagnostics — Performance Data Developer declared
  • Data Not Linked to You — Analytics — Usage Data — Product Interaction Developer declared
  • Data Not Linked to You — Diagnostics Developer declared
  • Data Not Linked to You — Usage Data Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

  • 20.0.1
  • 20.0.2

    After 5 years of persistence, T1D1 is back up in the app store with FDA Clearance! It is the ONLY cleared over-the-counter insulin calculator available in the US. This update corrects a minor error in our store listing.

  • 20.0.3

    Minor enhancements and updates

  • 20.1.0

    Minor updates improving non-critical usability Dependency updates

  • 20.1.1 · 30 Mar 2026

    Added a resource page. Minor back-end updates

Alternatives

Availability by market

Data quality & evidence

Page completeness
Live store listing
Last verified
7 Aug 2026
Sources
App Store

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