FLwatch: Glucose Sensor Graph
Insulin On Board + Activity
Free · In‑App Purchases · Designed for iPhone
FLwatch displays blood glucose readings from Abbott FreeStyle Libre 2 and Libre 3 sensors on your iPhone and Apple Watch using the LibreLinkUp cloud. 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
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.
* select patient if more than one followed
* fix timezone issue if patient and follower are not in the same timezone
The developer, Philipp Poeml, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Philipp Poeml
- Size
- 9.1 MB
- Category
- Medical
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later. - Apple Watch
Requires watchOS 10.5 or later.
- Languages
English and 9 more
- English, Dutch, French, German, Italian, Japanese, Polish, Russian, Simplified Chinese, Spanish
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
- In-App Purchases
Yes
- Some good coffee beans $4.99
- Some more good coffee beans $9.99
- Lots good quality coffee beans $49.99
- Many good quality coffee beans $24.99
- Copyright
- © 2024-2026 Philipp Pöml