FLwatch vs Dulce
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.
Dulce
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Dulce turns your glucose data into something you can actually glance at — clean, calm, and always one look away. Built for people who use a continuous glucose monitor and want a faster, friendlier way to check their numbers. Dulce connects to your compatible CGM account and brings your real-time glucose to the places you already look: your Lock Screen, your Apple Watch, and your Home Screen. WHY PEOPLE CHOOSE DULCE • See your current glucose and trend arrow instantly — no app to open • Live Activity on your Lock Screen keeps your number front and center • Apple Watch complications and app for a true at-a-glance check • Home Screen widgets in number and graph styles • Clear, color-coded view of where you are in range EVERYTHING YOU NEED, NOTHING YOU DON'T • Real-time glucose readings with trend direction • Time-in-range and daily trends, so you can spot patterns • Low and high alerts, including a critical-low safeguard • Quiet hours so alerts respect your sleep • Apple Health integration to keep your data together (read-only) • Designed first in Spanish, fully localized, and made for everyone SIMPLE BY DESIGN No clutter. No noise. Just your glucose, your trend, and the alerts that matter — presented with care so the information is instantly readable, day or night. PRIVACY YOU CAN TRUST Your health data is yours. Dulce reads your glucose to show it to you — that's it. COMPATIBILITY Dulce works with glucose data shared from a supported CGM account. You'll need an active connection to a compatible service to use Dulce. Dulce is a companion viewer and does not replace your CGM app, sensor, or any medical device. IMPORTANT Dulce is not a medical device and is not intended to diagnose, treat, or prevent any disease. Always confirm readings with your official sensor app and consult your healthcare professional before making any treatment decisions. Download Dulce and see your glucose the easy way. Privacy Policy: https://dulceglucosa.com/en/legal/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
FLwatch and Dulce are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 and Dulce sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
FLwatch ships an update every 5 days, Dulce every 4 days. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.
| Parameter | FLwatch | Dulce |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (38 ratings) — better | — |
| Positive reviews | 84.1% of reviews | — |
| Number of ratings | 38 — better | — |
| Update frequency | Every 5 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 71 MB |
| Age rating | 17+ | 17+ |
| Developer | Philipp Poeml | Giorgi Khimshiashvili |
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
Dulce
- Dulce Pro Monthly14 Days trial$2.991 Month
- Dulce Pro Yearly14 Days trial$22.991 Year









