Overview

Features & Capabilities

The Tandem t:slim Mobile App is the official companion app for the t:slim X2 insulin pump. It lets you deliver bolus from your smartphone, serves as a discreet secondary display, and lets you view pump data and receive push notifications on your device.

The app can wirelessly upload therapy data to the cloud and adapts to your phone's language settings. Requires a t:slim X2 pump and a compatible smartphone; some features may have restrictions or vary by locale. Always follow manufacturer instructions and user guides when using the app.

User Growth & Download Statistics

By:
Tandem Diabetes Care Inc.
Rating:
3.10
(2,126)
2 new ratings
Version:
2.13.1 Last updated: 2026-08-27
Version code:
888480074
Creation date:
2020-07-07
Compatible devices:
Size:
156.80MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-09-05
Compare stats and ranking:

Other platforms

Android
Tandem t:slim® mobile app (v2.12.1(4d6frb))
212,077 2.03 (4,044)

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Tandem Diabetes Care Inc.
Apple Apps Store
https://apps.apple.com/us/app/tandem-t-slim-mobile-app/id1455916023
Website:
https://www.tandemdiabetes.com/

User Reviews

The Tandem t:slim Mobile App shows strong bolus convenience and data sharing when it connects, but is hampered by reliability issues. The most recurring problems are Bluetooth disconnects and unpairing, alarm/notification fatigue with limited control, Dexcom CGM data gaps, frequent login/re-pairing requirements, and time-sync misalignment between phone and pump. Positive notes mention convenient bolus from the phone and ease of data upload to healthcare teams, highlighting a solid concept that is undermined by frequent connectivity and notification problems.
Pros
  • Bolus delivery via the app is convenient and increases ease of use when the connection is working.
  • Easy to upload data to healthcare providers.
  • User-friendly and intuitive UI when connected.
  • Overall ability to manage boluses from the phone adds convenience.
Cons
  • Frequent Bluetooth connection drops and unpairs with the t:slim pump, requiring re-pairing or app restart.
  • Alarm fatigue: excessive, repetitive alerts and notifications with limited customization or silencing options.
  • Dexcom CGM (G7) data integration issues: signals lost, data not updating, and inconsistent pump readings.
  • Frequent login/logout and re-authentication problems: app often logs out and requires re-download or re-pairing.
  • Time synchronization problems: phone and pump clocks drift and daylight savings/time zone changes cause misaligned alarms.
Recent reviews
dosent even work half the time just says "pump connection lost"
by al*****, 2026-08-16

It’s super convenient to bolus and check my blood sugar when it’s working, but it is almost never actually connected to my pump. When it does work, though, there isn’t an option to do extended bolus. The notifications are out of control too—I swipe it away and then it’s immediately notifying me again and again. The app is basically useless though because it’s never connected. It’s been several days since my pump and the app have had connection. Seriously considering switching from tandem now that my warranty is up because of how poorly the app runs, considering the power button on my pump hardly presses, the charging cover doesn’t close anymore, and I’ve already had to replace the pump once for just completely shutting down.
by Au*****, 2026-08-10
View all user reviews ›

Best Tandem t:slim Mobile App Alternatives

Here are some Apple apps that are similar to Tandem t:slim Mobile App: