# FLwatch: Glucose Sensor Graph — user reviews > 39 indexed App Store user reviews of FLwatch by Philipp Poeml, rated 4.60/5 from 34 ratings. - Source: https://appshunter.io/ios/app/flwatch-glucose-sensor-graph/id6670172928/reviews - App overview in markdown: https://appshunter.io/ios/app/flwatch-glucose-sensor-graph/id6670172928.md - Rating breakdown: 5★ 27 · 4★ 3 · 3★ 3 · 2★ 0 · 1★ 1 ## Newest reviews (13 of 39) ### 5/5 — Incredible app *2026-02-28* 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 **Developer response:** Thanks a lot. I am glad the app helps! ### 5/5 — Great app *2026-02-14* Thanks a lot for such a great app that lets me keep track of my blood sugar easily on my phone **Developer response:** Glad it helps! Thanks for letting a review! ### 5/5 — Awesome but not working anymore *2026-02-10* Worked flawlessly for a few months but now, not working on my iphone 17 pro. Why ??? **Developer response:** Hi, good question, what exactly is the problem? Best is to send an email to support. Thanks. ### 5/5 — Круто! *2026-02-04* Очень крутое приложение , можно вывести виджет на мак и айпад ну и естественно видеть сахар на часах. Огромный респект разработчику!!!! ### 5/5 — Fab and easy to use *2026-01-18* 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 😀 ### 5/5 — Freestyle Libre 3 *2026-01-09* 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 **Developer response:** Gerne. 😊 Ja, ist kostenlos und Quelloffen. Spendeninfos gibt es auf der Webseite von FLwatch. Grüße! ### 5/5 — Watch app *2026-01-09* Excellent app **Developer response:** 😊 Thanks! ### 5/5 — Tolle App *2025-11-06* Funktioniert echt gut mit Apple Watch ### 5/5 — Klasse App *2025-10-11* Teste die App jetzt seit zwei Tagen und sie funktioniert problemlos. Endlich Freestyle Libre3 auf der Apple Watch. ### 5/5 — Gut für alle „Follower“ *2025-10-01* Sehr gute Ergänzung oder Alternative zu LibreLinkUp. Durch die andere Ansicht kann man gut sehen, wie die Echtzeit-Werte immer wieder springen in manchen Situationen - eine gewisse andere App vertuscht das lieber dezent. Außerdem sehr vorteilhaft und vorbildlich: Open Source, kostenlos und man muß die Messwerte nicht auf die Server anderer Anbieter kopieren wie bei den meisten anderen iOS Apps, bei denen man zudem noch monatlich bezahlen muss = super beim Datenschutz 🙂 Absolut empfehlenswert!!! Vielen Dank an den Programmierer für seine Zeit und Arbeit! ### 5/5 — A must have watch app for Libre users. *2025-09-18* If been wanting this feature for the 5+ years I’ve been using the Freestyle Libre system. Having this app is so unbelievably convenient and makes keeping my glucose levels in more stricter control. Thanks for developing this app! **Developer response:** Thanks for your feedback! Glad the app is useful! ### 5/5 — Great App! Highly recommended! *2025-08-14* 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. One suggestion if its possible, Apple Health syncing. This would make the app even better! Great job! **Developer response:** Glad the app is useful and maybe assists a bit in living with diabetes. The request for Apple Health support is noted. Thank you. ### 5/5 — Minimalist but effective *2025-08-05* This app works! It’s simple to use, quickly to connect to a Libre 3 Plus via LinreLinkUp and just love the simplicity of the apple watch complication. But, most of all, Philipp, the developer, responds to a query within hours. Thank you for developing a useful app for those that have to deal with the burden of diabetes! ## Most critical reviews (10 lowest-rated) ### 1/5 — Great looking app but it eats battery charge! *2026-07-28* 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. **Developer response:** Thanks for the feedback. I have since done some additional profiling of FLwatch’s battery usage and identified the Live Activity as one area where consumption could be significantly reduced. In particular, rendering the glucose graph every minute was more expensive than necessary. This has now been reworked with a much more lightweight rendering approach and will be included in the next FLwatch release. In the meantime, users who experience higher-than-expected battery consumption can disable the Live Activity in FLwatch, which should considerably reduce its battery impact while keeping the rest of the app available. One small clarification regarding the percentage shown in iOS Battery settings: this number represents FLwatch’s share of the battery usage attributed to apps during the selected period. It does not mean that FLwatch itself consumed that percentage of the phone’s total battery charge. For example, an app can account for a large percentage of reported app usage even when the overall battery drain during that period was relatively small. Battery efficiency is something I continuously look at as part of developing FLwatch, and improvements like this are made whenever I find an opportunity to reduce resource usage without sacrificing functionality. ### 1/5 — Widget issue *2025-09-06* The widget on my watch does not show anything now. If I click it, it will show the glucose level. Please fix it. Thanks. **Developer response:** I find this very irritating and unfair. I develop this app in my free time, provide it to the diabetes community at no cost, plublish the source code, and you give one star ratings before even contacting support with your problem? Sorry, but you are NOT motivating me to continue the work. Instead, apps like this will disappear from the App Store. Development takes a lot of time, and money as well. Contact email support with your issue, or look at the source code and provide a fix. But complaining improves nothing for noone. App Store Ratings & Reviews is NOT the place to report bugs. Thank you. ### 3/5 — Great looking app but it eats battery charge! *2026-05-12* 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. 😞 **Developer response:** 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. ### 3/5 — Works but fails to update *2026-05-01* 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. **Developer response:** 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. ### 3/5 — Be careful *2025-06-02* After downloading this app my libre 3 stopped connecting. Went through all trouble shooting suggested. Spoke with libre support could not reestablish connection. Don’t know if this is a common problem, but it was my experience. **Developer response:** Hi, sorry to hear, but my app has absolutely nothing to do with your connection to your sensor. My app is not talking to your sensor at all. Indeed, Libre support is what you have to talk to. Pretty unfair to blame my app for this. In addition, you did not pay a penny for my app, I do this in my spare time for the good of the community. Instead of complaining, look at the code at GitHub and suggest some improvements. It is freely available. Thank you. ### 4/5 — Great App! Highly recommended! *2026-08-12* 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? **Developer response:** Thank you for coming back with another review — and I’m glad to hear you’re still enjoying FLwatch! Apple Health support was added after requests like yours, so it’s especially nice to see you using it now. Regarding the export switch: until now, FLwatch required permission for both glucose and insulin data before Apple Health export could be enabled. I recently changed this so the two are handled independently — for example, allowing glucose alone is now sufficient if that’s all you want to export. That improvement will be included in the next release, so what you’re seeing should be resolved there. Thanks again for the feedback and for sticking with FLwatch! ### 4/5 — Works great *2026-05-22* 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. **Developer response:** Thanks for the review. Maybe some missing permissions for Apple Health? Please send an email to support if the problem persists. ### 4/5 — Apple health *2025-12-05* Why is not connected to Apple Health? Is there any issue or reason for that? **Developer response:** Apple Health is supported now since a few months. Please try it out. ### 5/5 — This is an exceptional app. *2026-08-06* 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. **Developer response:** Thank you very much for the lovely review — I really appreciate it! Regarding long-acting insulin: FLwatch’s current IOB calculation is intended for rapid-acting insulin, as basal/long-acting insulin is normally treated separately rather than being included in IOB. That said, I’ll have a look at whether long-acting insulin could be entered and represented on the graphs in a useful way without making the IOB display misleading. And regarding the “since the last reading” display: I think you mean the indication showing how many minutes have passed since the last glucose value. If so, I can certainly look into providing an option to hide it. Thanks again for the kind words and for the suggestions — feedback like this is very helpful! ### 5/5 — A Very Underrated App, IMO *2026-06-28* 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. **Developer response:** 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! ## Most praised reviews (8 highest-rated) ### 5/5 — Top *2026-05-21* This is exactly what the Abbot app is missing. Thank you very much for working on this! **Developer response:** Thank you very much! I’m really glad FLwatch adds something useful that you were missing. Feedback like this is a great motivation to keep improving the app! ### 5/5 — Usefull *2026-05-15* This app is great. It brings functionality that Freestyle should really supply via their app. Well done and thanks **Developer response:** Thanks. Glad it helps! 😊 ### 5/5 — At last, an app that’s practical! *2026-05-13* 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! **Developer response:** 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. 😊 ### 5/5 — Excellent. Top notch *2026-05-07* 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! ### 5/5 — Diabetiker Must have *2026-05-05* 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. ### 5/5 — Genial *2026-04-19* 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! ### 5/5 — Muito bom *2026-04-12* Muito bom porém sinto falta de mais gráficos de acompanhamento e não há opção para registrar injeção de basal **Developer response:** 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. ### 5/5 — Incredibly good. *2026-03-21* 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! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*