FLwatch: Glucose Sensor Graph

Name: FLwatch: Glucose Sensor Graph
Rating: 4.6 (33 reviews)
Author: Philipp Poeml

By: Philipp Poeml App

Insulin On Board + Activity

Overview

Version:

2.3.0

Last updated: 2026-05-28

Ranking

#234,243 ▼ 1,215

Overall

Features & Capabilities

FLwatch displays blood glucose readings from Abbott FreeStyle Libre 2, Libre 3 and Dexcom G6 / G7 / ONE+ sensors on your iPhone and Apple Watch using the LibreLinkUp cloud or Dexcom Share. It also lets you record insulin doses and visualizes insulin-on-board and insulin activity with dedicated graphs, helping you better understand how insulin and glucose levels interact.

With native Apple Watch support, widgets, and Live Activities, your glucose data is always visible across your Apple devices, helping support daily diabetes management.

FLwatch is free and open source.

FEATURES

Glucose Monitoring • Blood glucose graph on iPhone and Apple Watch • Interactive chart on iPhone — tap to inspect individual readings • Optional always-on display mode for quick viewing • Real-time updates via LibreLinkUp / Dexcom Share

Insulin Tracking • Insulin on Board (IOB) calculation • Supports rapid-acting and fast-rapid-acting bolus insulins • Insulin on board graph • Insulin activity graph

Widgets and Live Activities • iOS Home Screen widgets (with and without graphs) • Lock Screen widgets • StandBy widgets for bedside view • Live Activities for quick glucose updates

Apple Watch • Native watchOS app • Apple Watch widgets and complications • Glucose graph directly on the watch

Apple Ecosystem Integration • CarPlay support via widgets and Live Activities • Export insulin doses and glucose data to Apple Health

More Information

For documentation, feature details, and the open-source code, visit: https://flwatch.app/

DISCLAIMER

Not for treatment decisions.

The information provided by this app and its extensions must not be used for treatment or insulin dosing decisions. Always rely on your glucose monitoring system and consult a healthcare professional when making medical decisions.

TRADEMARK NOTICE

All product names, trademarks, and registered trademarks are the property of their respective owners. Their use here is for identification purposes only and does not imply affiliation with or endorsement by the trademark holders.

This app is not affiliated with or endorsed by Abbott Diabetes Care Inc. or Dexcom Inc.

User Growth & Download Statistics

App

By:

Philipp Poeml

Rating:

4.60

(33)

Version:

2.3.0 Last updated: 2026-05-28

Version code:

886199119

Creation date:

2024-09-26

Compatible devices:

Size:

10.08MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-07-23

Compare stats and ranking:

Ranking

# 234,243 ▼ 1,215

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:

Philipp Poeml

Apple Apps Store

https://apps.apple.com/us/app/flwatch-glucose-sensor-graph/id6670172928

Website:

https://flwatch.app/

User Reviews

FLwatch is praised for real-time Apple Watch readings, easy Libre sensor setup, and cross-device usefulness, including hospital scenarios. Users also highlight strong, responsive support. However, recurring issues include Libra connectivity instability and a common request for Apple Health integration. Overall, it offers valuable widget/watch data accessibility, but reliability with sensor connections and Health syncing remain areas for improvement.

Pros

Real-time glucose readings on Apple Watch via a widget/complication for quick access.
Easy setup and reliable connection to Libre sensors (Libre 2 and Libre 3 Plus) across iPhone, iPad, Mac, and watch.
Accurate readings relied on by users, including during hospital stays.
Responsive developer support and quick fixes.

Cons

Libre sensor connectivity can be unstable for some users, with reports of the app not connecting or working on certain devices or after updates.
No Apple Health integration; users want syncing with Apple Health.

Recent reviews

There are other Glucose apps, which charge for live activities not nearly as accurate and helpful as FLwatch. I started using this when I still had an Apple watch which I’ve since ditched because of the inexcusable battery life. Still use on my iPhone and the Live Activities update with my Librelink app immediately. Thank you for a great app with both privacy and great performance.

by Co*****, 2026-06-28

The app works as advertised, only problem is that the lock screen graph and number do not update. When you press the update button, it opens the app. This is not why I wanted this. I want an app the can be made to show the current blood glucose number as measured by my CHM to show on the lock screen. Three stars as the app is halfway there…. Wow, got a nasty message from the developer. Diabetics are looking solutions. I understand that being limited by iOS is frustrating but not nearly as frustrating as monitoring your vital signs every 15 minutes and taking six shots of insulin a day. Maybe the rating should one star based on customer service.