Tandem t:slim Mobile App

Name: Tandem t:slim Mobile App
Rating: 3.1 (2098 reviews)
Author: Tandem Diabetes Care Inc.

By: Tandem Diabetes Care Inc.

t:slim X2 insulin pump

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

App Privacy & Security Education Data

By:

Tandem Diabetes Care Inc.

Rating:

3.10

(2,098) 2 new ratings

Version:

2.12.1 Last updated: 2026-04-27

Version code:

884602400

Creation date:

2020-07-07

Compatible devices:

Size:

166.53MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-10

Compare stats and ranking:

Ranking

# 50,090 ▼ 13

Other platforms

Tandem t:slim® mobile app (v2.11.2(3cd3rb))

199,813 1.84

(3,929)

For Developers

Monetize with App Pass Boost with Extension Booster

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

never in range, always disconnecting from bluetooth. embarrassing app considering the technology that is available in today’s society.

by lo*****, 2026-06-04

Do not waste your time. This app simply does not work. Loss of connection is all it’s ever able to say, as if that helps anyone. Delete this review and I’ll bash you again in the next one. Instead of monitoring reviews it’d probably be a good idea to make your product work. I used to be a huge proponent of Tandem products but profit over people changed that.

by Su*****, 2026-06-01

I just started an insulin pump, as a diabetic which is super cool! But the lack of features like setting your exercise or sleep schedule, or even turning on dark mode from inside the app is SUPER ANNOYING! I went with the X2 /specifically/ because I wouldn’t have to change it as often which is great but the fact that I have to activate sleep mode from the pump itself gets me annoyed. I shouldn’t have to dig my pump out from wherever I have it to activate sleep mode just so I can SLEEP! MOBI users get to active sleep and exercise from their app so why can’t X2 users? And NO, I don’t want to talk to anyone from the tech team tandem, I want you to update the app to have these features because I know you can!