FLwatch User Reviews

Customer Experience

Positive experience86.8% of reviews
Neutral7.9% of reviews
Negative experience5.3% of reviews

~ Based on 38 written reviews from the US App Store.

Is FLwatch Safe?

FLwatch: Glucose Sensor Graph appears mostly safe based on user ratings. AppsHunter Safety Score for FLwatch is 84/100.

This assessment is based on 34 user ratings, with an App Store average of 4.6/5.

Safety Analysis

88.2% of ratings point to a safe experience
8.8% of ratings suggest some concerns
2.9% of ratings point to a risky experience

~ Based on 34 App Store ratings for FLwatch.

Is FLwatch Legit?

FLwatch: Glucose Sensor Graph appears legitimate, with a few gaps. AppsHunter Legitimacy Score for FLwatch is 75/100.

Based on 75 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Great App! Highly recommended!

Great to see readings on widgets, also with a reload and time from last reading feature. I’ve been using with iPhone, iPad and Mac. I’m now thinking about getting an Apple Watch to have a faster way to see my readings.

I see you added an option to sync to apple health, but the switch to export on the app won’t slide. In settings Apple Health FlWatch is switched on to allow as a source, but still on the app I press y slide on to export the data is not possible. Is it just me?
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Response from developer

Glad the app is useful and maybe assists a bit in living with diabetes. The request for Apple Health support is noted. Thank you.

This is an exceptional app.

Fit for purpose, no fluff, no annoyance. Just one thing please, can the long action be part of the input as well as fast acting then on the graphs it can be estimated for different time delay tweaking please.
And a button to hide the ‘since the last reading’ as I keep mistaking it for my clock.
Cheers. I love it and Thankyou muchly.
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Great looking app but it eats battery charge!

I installed this app two days ago and have to say that initially I was very impressed. Really nice graphics and faultless operation. After 24 hours it became apparent that both phone and watch battery charge levels were being badly impacted. Another 24 years on and the iPhone battery app reports over 50% usage by the FLwatch app.
I have reverted to SweetDreams app which functions the same but only uses a few percent in the same time. Real shame. 😞

Update. After a rebuttal from the writer, I reinstalled the App just to find that it screws battery life just as bad as before. Over 60% of my battery consumption was the FL Watch app on the first day. Needless to say I’ve removed it again.
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Response from developer

Thanks for taking the time to leave feedback and for trying FLwatch. FLwatch is a free and open-source project that I develop in my spare time to help the diabetes community. I genuinely appreciate bug reports, feature suggestions, and constructive criticism, because they help improve the app for everyone. That said, some limitations are outside of the app’s control — especially regarding iOS/watchOS background updates, widget refresh frequency, and battery usage, which are heavily restricted by Apple’s system policies and can vary significantly between devices and configurations. I always try to improve performance, reliability, and battery efficiency whenever possible. If something is not working as expected, please consider reaching out through the project channels with details about your setup so issues can be investigated properly. Thank you again for your support, patience, and understanding.

A Very Underrated App, IMO

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.
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Response from developer

Thank you so much for your kind words and for taking the time to leave such a thoughtful review! I’m really happy to hear that FLwatch continues to be useful for you, even after switching away from the Apple Watch. It’s especially great to know that the Live Activities and LibreLink updates are working well for you. FLwatch is a free, open-source project that I develop in my spare time, so feedback like yours means a lot. Reviews like this are not only a huge motivation to keep improving the app, but they also help increase its visibility in the App Store, making it easier for other people with diabetes to discover it. Thank you again for your support and for being part of the FLwatch community. Wishing you all the best and stable glucose readings!

Works great

This app does what Libre 3 is too lazy to do, it talks to my Apple Watch! Yay! Now I have to figure out why it won’t talk to Apple Health.

Response from developer

Thanks for the review. Maybe some missing permissions for Apple Health? Please send an email to support if the problem persists.

Top

This is exactly what the Abbot app is missing. Thank you very much for working on this!

Usefull

This app is great. It brings functionality that Freestyle should really supply via their app. Well done and thanks

Response from developer

Thanks. Glad it helps! 😊

At last, an app that’s practical!

love love love the app. User friendly and just sensible. Being able to easily see what’s going on at a glance without having to open apps and pressing a million buttons is amazing. My only suggestion/request would be to make the ‘resulting carbs’ button a free-fill option when we know the carb quantity already. Coffee donation on it’s way to you, it’s well deserved for making my (and my kids) life so much easier. Thank you!
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Response from developer

Thank you so much for your review. I agree with the carb field. But I could not make it accepting input as well. And adding another field made everything too cluttered. My wprkaround: add the carbs on the carb/100g field, tap the 100g portion field and there you have the carbs you entered. 😊

Great looking app but it eats battery charge!

I installed this app two days ago and have to say that initially I was very impressed. Really nice graphics and faultless operation. After 24 hours it became apparent that both phone and watch battery charge levels were being badly impacted. Another 24 years on and the iPhone battery app reports 40% usage by the FLwatch app.
I have reverted to SweetDreams app which functions the same but only uses a few percent in the same time. Real shame. 😞
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Response from developer

Thanks for taking the time to leave feedback and for trying FLwatch. FLwatch is a free and open-source project that I develop in my spare time to help the diabetes community. I genuinely appreciate bug reports, feature suggestions, and constructive criticism, because they help improve the app for everyone. That said, some limitations are outside of the app’s control — especially regarding iOS/watchOS background updates, widget refresh frequency, and battery usage, which are heavily restricted by Apple’s system policies and can vary significantly between devices and configurations. I always try to improve performance, reliability, and battery efficiency whenever possible. If something is not working as expected, please consider reaching out through the project channels with details about your setup so issues can be investigated properly. Thank you again for your support, patience, and understanding.

Excellent. Top notch

Very useful to get the libre 2 sensor data in near real time on the apple watch. The widget was easy to set up a complication on ultra watch face instead of (music) and i get a direct read of sensor data.. clicking on brings up a graph. All I need! Great!

Diabetiker Must have

Ich kann dem Entwickler nur meinen herzlichen Dank aussprechen und hoffe meine Kaffeebohnen haben geschmeckt.
Alleine für die Carplay Funktion gibts bei mir schon 100 Punkte. Unverständlich das Abbott so etwas nicht auf die Reihe bekommt, bei den Milliarden die die mit Libre verdienen.

Works but fails to update

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.
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Response from developer

Thanks for taking the time to leave feedback and for trying FLwatch. FLwatch is a free and open-source project that I develop in my spare time to help the diabetes community. I genuinely appreciate bug reports, feature suggestions, and constructive criticism, because they help improve the app for everyone. That said, some limitations are outside of the app’s control — especially regarding iOS/watchOS background updates, widget refresh frequency, and battery usage, which are heavily restricted by Apple’s system policies and can vary significantly between devices and configurations. I always try to improve performance, reliability, and battery efficiency whenever possible. If something is not working as expected, please consider reaching out through the project channels with details about your setup so issues can be investigated properly. Thank you again for your support, patience, and understanding.

Genial

Endlich eine App die den Blutzuckerwert auf der Uhr anzeigen lässt und das sogar mit Verlauf. Alle 15 Minuten wird der Wert aktualisiert und das ist genial so hat man den Zucker kontinuierlich unter Kontrolle - nach dem Essen sollte man ja sowieso wieder erst nach 2 Stunden messen bevor man mit dem Insulin gegenreguliert.
Ich hoffe der Erfinder der App gewinnt im Lotto weil die App ist Goldwert!
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Muito bom

Muito bom porém sinto falta de mais gráficos de acompanhamento e não há opção para registrar injeção de basal

Response from developer

Obrigado. Que tipo de gráfico você gostaria de ver? A insulina basal não é incluída nos cálculos da insulina ativa. Ela deve permanecer constante e é normalmente administrada apenas uma vez por dia ou a cada dois dias.

Incredibly good.

This app is incredibly good and works surprisingly well. The only time it’s stopped working on my watch. is when my sensor disconnected and that’s not the fault of the app.

I wouldn’t recommend this with Freestyle Libre 2 sensors because of how unreliable those sensors are for staying connected. Again that’s the fault of the sensors and not the app.

So far it works incredibly well with the Libre 3 Plus sensors and I highly recommend it!
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Incredible app

App is in incredible for my diabetes with using my watch such a great useful app for anybody with diabetes and keeping eye on daily basis especially with Apple Watches so great

Response from developer

Thanks a lot. I am glad the app helps!

Great app

Thanks a lot for such a great app that lets me keep track of my blood sugar easily on my phone

Response from developer

Glad it helps! Thanks for letting a review!

Awesome but not working anymore

Worked flawlessly for a few months but now, not working on my iphone 17 pro. Why ???

Response from developer

Hi, good question, what exactly is the problem? Best is to send an email to support. Thanks.

Fab and easy to use

This is the app that Freestyle Libre sensor users need (ie all the missing functionality that Abbott can’t be bothered supply as standard!).

1. Integration with Apple Watch using the LibreLinkUp data. Very easy to set up, especially if you’ve already done this yourself share data with your GP/DSN. FYI I use the modular watch face and set the complications to update every 20 minutes.
2. Ability to record IOB - no idea why LibreLink doesn’t do this - prettier y essential.

The app is free, but I’ve bought the developers some coffee and recommend you do the same 😀
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Freestyle Libre 3

Es funktioniert tadellos über meine WatchOS. Ich hoffe es ist wirklich kostenlos.
Würde gerne etwas spenden per PayPal
wenn es möglich ist.
Lieben Dank und viele Grüße

Response from developer

Gerne. 😊 Ja, ist kostenlos und Quelloffen. Spendeninfos gibt es auf der Webseite von FLwatch. Grüße!