FLwatch vs OfflineQArm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FLwatch
Visualize blood glucose readings from compatible sensors on your iPhone and Apple Watch. Track insulin doses, view insulin-on-board and activity graphs, and integrate data with Apple Health for comprehensive diabetes management.
- Blood glucose graph on iPhone and Apple Watch
- Insulin on Board (IOB) calculation
- Insulin activity graph
- iOS Home Screen and Lock Screen widgets
- Live Activities for quick glucose updates
- CarPlay support
- Export to Apple Health
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FLwatch displays blood glucose readings from Abbott FreeStyle Libre 2, Libre 3 and Libre 3+ sensors, as well as Dexcom G6 / G7 / ONE+ sensors, on your iPhone and Apple Watch. Glucose data can be received through the LibreLinkUp cloud, Dexcom Share, or a direct Bluetooth connection to Libre 3 and Libre 3+ sensors. Workout mode is available with every supported CGM provider. Follow your glucose graph during exercise and set a workout-specific low-glucose alert to help you notice when your glucose falls. With Libre 3 and Libre 3+, direct-to-watch Bluetooth support lets you leave your iPhone behind during exercise. Start a workout in FLwatch to receive sensor readings directly on your Apple Watch. Record insulin doses and view insulin-on-board and insulin activity graphs. With Apple Watch support, widgets, Live Activities, and configurable glucose and sensor alerts, your glucose data is easily accessible across your Apple devices. 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 calibration offset for directly connected Libre 3 and Libre 3+ sensors • Check your current glucose and trend using Shortcuts or Siri • Optional always-on display mode for quick viewing CGM Providers • Direct Bluetooth connection to Libre 3 and Libre 3+ sensors • LibreLinkUp cloud • Dexcom Share Alerts • Configurable low and high-glucose alerts on iPhone, Apple Watch, and CarPlay • Additional critical-low and signal-loss alerts for directly connected Libre 3 and Libre 3+ sensors • Libre 3 and Libre 3+ warm-up status, remaining sensor life, and expiry and replacement notifications • Optional critical delivery and individual Do Not Disturb times Insulin Tracking • Record insulin doses on iPhone, or with Shortcuts and Siri on iPhone and Apple Watch • Basic carbohydrate and insulin calculator using portion size and a configurable insulin-to-carbohydrate ratio • Insulin on Board (IOB) calculation • Supports rapid-acting and fast-rapid-acting bolus insulins • Insulin on board graph • Insulin activity graph Widgets, Live Activities and CarPlay • iOS Home Screen widgets, with and without graphs • Lock Screen widgets • StandBy widgets for bedside view • Live Activities for quick glucose updates • CarPlay view showing current glucose and IOB • Glucose graphs in CarPlay through widgets and Live Activities Apple Watch • Native watchOS app • Workout mode with glucose monitoring and configurable low-glucose alerts for all supported CGM providers • Direct-to-watch Bluetooth readings from Libre 3 and Libre 3+ during workouts • A wide range of widgets and watch face complications • Glucose graph directly on the watch • On watchOS 11 or later, Live Activities can be mirrored to the Smart Stack For the best direct-to-watch connection, wear your watch on the arm closest to the sensor. Connection drops can still occur and interrupt readings. Data Sharing • Export glucose readings and recorded insulin doses to Apple Health • When using a direct Libre 3 or Libre 3+ Bluetooth connection, export glucose readings and recorded insulin doses to your own Nightscout server 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.
OfflineQArm
This app allows you to continue using your QardioARM blood pressure monitor even after the original app's servers have been shut down. It enables offline use, storing all your readings directly on your phone and optionally syncing them to the Health app.
- Offline blood pressure monitoring
- No server login required
- Data stored locally on phone
- Save readings to Health App
- Prevents device obsolescence
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The original Qardio App no longer works, and requires us to log in to read our blood pressure readings, when the company has shut down their servers. This tool stops you from turning your trusty Qardio Blood Pressure Monitor to e-waste. No need to sign up to take readings, no need to provide a company with your data. It is all stored on your phone, and you can also save readings to the Health App.
Screenshots
Verdict
The clearest difference is in-app purchases: OfflineQArm at none against FLwatch's 4. FLwatch's advantage is update cadence (every 8 days vs every 10 months). On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. FLwatch sells 4 one-off in-app purchases. OfflineQArm asks for nothing beyond the download.
FLwatch holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 41 and 122 respectively. Written reviews split almost evenly too, at 82% and 83% positive.
FLwatch ships an update every 8 days, OfflineQArm every 10 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | FLwatch | OfflineQArm |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (41 ratings) — better | 4.5 (122 ratings) |
| Positive reviews | 82.2% of reviews | 82.6% of reviews — better |
| Number of ratings | 41 | 122 — better |
| Update frequency | Every 8 days — better | Every 10 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 18.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 20 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Philipp Poeml | Edward Vella |
Customer experience
FLwatch
OfflineQArm
Bugs and requests
FLwatch
Not enough reviews yet to summarise bugs or requests.
OfflineQArm
Reported bugs
1 issue- Doesn't start measurement cycle
Requested features
1 request- Troubleshooting support
In-app purchases
FLwatch
- Some good coffee beans$4.99
- Some more good coffee beans$9.99
- Many good quality coffee beans$24.99
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- Lots good quality coffee beans$49.99
OfflineQArm
No in-app purchases








