4.1
833 reviews
50K+
Downloads
Content rating
Everyone
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About this app

Juggluco is an app that receives glucose values via Bluetooth from Freestyle Libre 2, 2+, 3 and 3+, Sibionics GS1Sb, Dexcom G7/ONE+, Accu-Chek SmartGuide and CareSens Air sensors. In addition, Juggluco can scan NovoPen® 6 and NovoPen Echo® Plus and receive test results via Bluetooth from Contour Next glucose meters.
Juggluco can send glucose values to all kinds of smartwatches, see left menu→Watch→Help: https://www.juggluco.nl/Jugglucohelp/watchinfo.html
The phone version of Juggluco can talk out incoming glucose values, display it in a widget on the home screen and in floating glucose above other apps. Juggluco can display the usual glucose statistics. Other apps can receive data from Juggluco via glucose broadcasts and the web server in Juggluco. Juggluco can send data to Health Connect, Libreview and Nightscout. Data can also be exported to a file or send to another exemplar of Juggluco on another phone, tablet, emulator or watch. It has the option to set low and high glucose alarms and medication reminders.

Start

To use a Libre 2 sensor, scan it with Juggluco. To take over a Libre 3 sensor from Abbott's Libre 3-only app, you need to enter in left menu→Settings→Exchange data→Libreview the same account as when activating the sensor and press Get account ID, to receive a number from Libreview. When you now scan the sensor this number will be sent to the sensor. No Libreview account is needed, when the Libre 3 sensor is activated with Juggluco: enter an arbitrary number before scanning the sensor. The first time it takes 2 to 10 minutes before Juggluco receives a glucose value via Bluetooth from the sensor. To prevent interference, force stop apps and turn off devices previously used with the sensor. To keep Juggluco running in the background, allow background activity and turn off battery optimizations for Juggluco. Don’t hide Juggluco’s notification.
After scanning a Libre 2 sensor with Juggluco, Abbott’s Libre 2 app can only scan the sensor (when two apps are on the same phone they can both receive glucose values from European Libre 2 sensors, but this can give connection problems.) Libre 3 sensors can still be used with Abbott’s Libre 3 app after using it with Juggluco: stop Juggluco and scan the sensor with Abbott’s Libre 3 app, agreeing that you stop the current sensor and start a new one. When going back to Juggluco you have to scan again.
To use a Dexcom G7/ONE+ sensor, scan the data matrix on the applicator with left menu→Photo.
For Accu-Check SmartGuide sensors, scan the data matrix on the blue cap and when asked enter the pin.
For Sibionics GS1Sb sensors you need to scan the data matrix on the package.
Warning: CareSens Air sensors can switch device only once. Scan the data matrix on the inner package with left menu → Photo.
See: https://www.juggluco.nl/Juggluco/sensors

Wear OS

The phone version of Juggluco scans the sensor and sends this data to the WearOS version of Juggluco. Bluetooth on both phone and watch needs to be turned on. For fast transmission, also WIFI. After initialization, you can switch on and off directly connecting the sensor with the watch, with left menu→Watch→Wear OS config→Direct sensor-watch connection. https://github.com/j-kaltes/Juggluco/wiki#wearos-watches collects information about how well different watches work with Juggluco.
Wear OS version contains complications to display the glucose level on a watch face.

https://www.juggluco.nl/Jugglucohelp/introhelp.html
Updated on
Jan 30, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.1
776 reviews
Behnam Ashjari
December 28, 2025
Overall positive. This is the most comprehensive and best third-party CGM management app in the market. it has many capabilities and is accurate. but the UI and menus are disorganized and confusing. The Number labels under menu>settings don't work right. Automatic populating of long and fast insulin, meals, blood etc does not work well. Shortcuts don't work and either non-existent or unintuitive or hidden. There are hidden menus that are impossible to access. It takes a PhD to master Juggluco!
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Jessica Corsi
March 3, 2025
Very good so far, just one minor issue. It loses bluetooth contact with my Freestyle Libre 3+ sensor every few readings. I turn Bluetooth off and on again far more often than I'd like to, and I've tried many things. Any suggestions? 5 stars for any response, even if it doesn't fix the issue. I like that i have the option to connect it to my watch without internet.
4 people found this review helpful
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Jaap Korthals Altes
March 3, 2025
I don’t think that you need switch Bluetooth off and on for the connection with the sensor. For more help send me an e-mail exactly describing your situation: what watch, which device is directly connected with the sensor, did you use the sensor also with another app?
Steph G
December 16, 2025
I installed this because the official one for Libre 2+ was frustratingly glitchy - constant loss of signal alarms which won't turn off. I am so pleasantly surprised. I found it a little difficult to get used the the data showing in landscape form but otherwise it's working really well. I love the fact that my glucose reading now shows both on my lockscreen and homescreen - it's not intrusive, just useful and something that the creators of the official app have not considered doing.
2 people found this review helpful
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What’s new

• Bug fix