# Glucose \| Blood Sugar Tracker — user reviews > 407 indexed App Store user reviews of Glucose | Blood Sugar Tracker by App Sub 1 LLC, rated 4.60/5 from 28,241 ratings. - Source: https://appshunter.io/ios/app/glucose-blood-sugar-tracker/id1135157609/reviews - App overview in markdown: https://appshunter.io/ios/app/glucose-blood-sugar-tracker/id1135157609.md - Rating breakdown: 5★ 22,009 · 4★ 3,417 · 3★ 1,126 · 2★ 398 · 1★ 1,291 ## What do users think of Glucose | Blood Sugar Tracker? Overall sentiment: negative **Pros** - 👍 Easy to use - 🚀 Simple and straightforward - 💡 Estimated A1C feature - 👍 Graphs and data visualization **Cons** - 🔒 Subscription model to access full features - 🐛 Recent update removed decimal point for glucose entries - 🔒 Locked features behind paywall - 🔒 Sudden changes to free version **Commonly reported bugs** - Apple Watch app not functioning - Sync issues with HealthKit causing duplicate entries **Most requested features** - Ability to set custom glucose range - Medication tracking - Improved Apple Watch integration - Ability to contact developers ## Newest reviews (16 of 407) ### 2/5 — Version 3.16.2 *2026-06-23, version 3.16.2* No longer works on my iPhone??? ### 1/5 — No longer opens *2026-05-14, version 3.16.1* Just made me do an update and now I cannot use it at all.. ### 4/5 — Not working with IOS update *2026-05-14, version 3.16.0* Update: 5/14/26, prompt response in fixing the problems and added a couple nice features to the app, AI to track your carb intake by taking a photo and Bluetooth for CGM. I have tried the AI to track carbs and it is close, but not perfect. Haven’t tried the CGM yet. Keep up the good work I have used this app for a couple of years and enjoy the tracking. Update 5/9/26: new rev 3.15.0 is broke, it is looking for a non existent glucose monitor so the app does not function. Please have it manual connect instead of when the app opens Updated phone to 26.1 and now the app does not open. Opening screen pops up and a few seconds later shuts down. Unable to input any data. I really liked this app for tracking blood sugar but may have to look for a different one. ### 4/5 — Improved since update *2026-05-14, version 3.15.0* Originally this app would not function as it tried to sync with Apple health. This appears to have been improved. The app is now functioning since the update. ### 3/5 — Glucose app & Apple Health conflict? *2026-05-14* I recently gave a one star review on this app. Yesterday I received an eMail (probably from a bot) suggesting I update the app and consider a new review. I previously had removed the app when it no longer worked, reinstalled and still had conflicts. The app absolutely wanted me to enter a glucose monitor that was not on their list and I was unable to do anything else with the app. This morning I again removed the app, but this time I turned my phone off for about 5 minutes. When I restarted my iPhone I went to the App Store and re downloaded the app. When I opened the app it again went straight to Add a Glucose Monitor, but this time, after about a minute, that screen went off and the app seems to be functioning normal again. All of my previous information had been saved by Apple Health and automatically was synced to this app, so I didn’t have to re inter any data which I’m grateful for. Time will tell if this apps continues to work. ### 2/5 — New features are annoying *2026-05-14, version 3.16.0* After this last update it’s trying to push Bluetooth monitor connection and upscaling their subscription that would cost me more than my yearly membership. This is getting out of hand. It was fine before and now just getting worse ### 1/5 — App no longer works *2026-05-14, version 3.16.0* Please fix the app. Last update in May 2026 has killed it. 2026-05-13. It is fixed. ### 2/5 — I want my money back. *2026-05-11, version 3.16.0* I signed up for the free trial period. But I’m positive I cancelled my subscription before the end of the trial. (I understand that there is a possibility that I am wrong, I do not have exact dates.) I have been trying to set up your app for days now. At first, it retained all my data from using it in the past. (I did use a free version for a long time a while back. Never really had a problem.) But it just crashed while saying “syncing Apple health information.” Over and over for a few days. So I reinstalled it. Then it said I had to sign in or make an account. I had a password saved, but no user name. So I tried both main emails I use. No information on either. Then I checked to see if I used a ‘hide my email,’ and that turned up nothing. So I decided, something must have happened. I’ll make a new account using a different email. Which I did. Successfully signed in, I went to fill out my profile and adjust other settings. Now I’m finding that the ‘Sync with Apple Heath’ feature does nothing but open a new screen with same button on it. So I don’t see how it’s fair to have given you money for an app that does nothing work. I want a refund. And I don’t want technical help, I don’t want a deal for next year, I don’t want to be convinced that this is user error or anything. I just want my money. Because the app’s layout is simple and self-explanatory. It just doesn’t work. ### 1/5 — Not so great *2026-05-11, version 3.15.0* App was working great until the update on may 6/7, 2026. Since I can’t do ANYTHING in the app. Which means I’m paying for something that goes me no good and doesn’t allow me to continue to keep my doctor in the loop. Fix it quickly ### 1/5 — Now not working!!! *2026-05-11, version 3.15.0* Hasn’t worked since the most recent update AND no one from the company has answered my email!! ### 1/5 — App stopped working *2026-05-11, version 3.15.0* I can’t contact app support. The app doesn’t work at all! ### 3/5 — Great App, when it works *2026-05-11, version 3.15.0* I have been using this app to manually enter my glucose data for more than a year. I like the UI, the ease of entering data and the integration with Apple Health. Unfortunately, the latest update hangs on trying to synch with Apple Health, and when i disable access to Apple Health it hangs on trying to connect to a glucose meter, but my glucose meter does not support Bluetooth, which is why I enter data manually. Hopefully this issue is addressed soon. ### 1/5 — App screen is locked *2026-05-11, version 3.15.0* App screen is locked after latest update. Can't use it. Have been paying for it monthly and now it is useless! ### 1/5 — You Have ruined the app *2026-05-11, version 3.15.0* Your latest update, which appears to be designed to enable easier connectivity, has made the app essentially useless for manual data entry. I’m moving on after years. a real shame. ### 1/5 — Not working after lates update. *2026-05-11* Stopped working after latest update, stuck with message !’Receiving Data .. ‘ . **Developer response:** We’re sorry to hear you faced issues when using Glucose - please update to our latest version, which fixes a number of issues! ### 2/5 — Updated and dot work now *2026-05-10, version 3.15.0* Since the update, I cannot add any of my information ## Most critical reviews (10 lowest-rated) ### 1/5 — I want my money back or at least a prorated subscription. Complete radio silence from the devs *2026-08-09, version 3.16.3* Update 3: anyone out there? Hello? Did you fix this app? I had the paid subscription, but it ended up not working after iOS 26 Still waiting to hear from someone. Anyone. Ended up with months I couldn’t use after paying. Update 2: still haven’t heard from anyone. It’s like the developer has abandoned this app. Update: still have not heard anything from anyone about a fix or an ETA for the app. Have since several support tickets. I still have almost 5 months left on my subscription, would be nice to have a prorated refund at least. Yes I will not be using any more apps or paying for anything else from your company. I really like this tracker. It was the best one I’ve found so far. I paid the yearly subscription fee so I could have the A1c estimator (which is way off by the way). Originally gave a five star review but walking that back now. iOS update has caused the program to stop working completely. Someone on the web suggested uninstalling and reinstalling. So I backed up my data at Apple health uninstalled, then reinstalled the program. It worked one time and then crashed again. It also will not retrieve my backup data from Apple health. As of today when I try to use the app, it just loads to the blue screen and hangs and does nothing else. Have reached out to support a couple times now and it’s been complete radio silence so today I will uninstall and go look for something else. I know my subscription is only $30, but $30 is a lot when you don’t have insurance and you’re paying for insulin out-of-pocket. ### 1/5 — Used to work nicely with Dario; doesn’t anymore. Canceling… *2026-07-26, version 3.16.3* Canceling sub; used to work nicely with Dario; no longer connects at all! ### 1/5 — Does not work *2026-07-23, version 3.16.3* Cannot use, instantly crashes when I try to use app, I paid 40 dollars for a worthless app. I hope I can get a refund from apple. Do not recommend. ### 1/5 — Horrible App *2026-07-09, version 3.16.2* The app doesn’t even stay open long enough for you to do anything! ### 1/5 — Great App Now Unusable *2026-06-15, version 3.16.2* This has been an excellent app I highly recommended, but is has become unusable. In May 2026 it started freezing and shutting down. Then at the end if May an update made this happen less often. Now it is back to the same issue. I communicated and developers just said the update should fix things. Well, it did not. And it does not matter if I am connected to Apple Health or not☹️ ### 1/5 — Does not work on my iPhone *2026-06-12, version 3.16.2* Paid for a premium subscription. Can’t even open the app for a moment before it crashes. A waste of money. ### 1/5 — Failing Formerly Very Good App *2026-05-26, version 3.16.1* I have used this app for four years and found it very useful. I appreciated all the improvements made since then. I almost quit using it as the performance deteriorated the past few months. A few weeks ago, the new update made great improvements, and I was very hopeful. However, this past week it started crashing and having issues. Now it is unusable. I contacted the developers, but have yet to get a response. I will not be continuing to pay for this app unless there is dramatic improvement. I used to recommend this app all the time. Not anymore☹️ ### 1/5 — Scam *2026-05-19, version 3.16.1* Does not work for freestyle libre 3 Plus even though this is what popped up when I searched for it. Waste of 40 dollars. ### 1/5 — Update killed it IMO *2026-05-19, version 3.16.1* The latest update destroyed the functionality of the app IMO. I paid for a subscription and have been using it for a year without issue and now I have to close and swipe away "share the app!" And "upgrade" advertising, I have to scroll past a "daily carb budget" widget to access the part I actually use and there's no way to remove it and now they want to double the subscription??? It used to provide a simple way to track meds, blood sugar, weight, insulin, etc and now it is cluttered and obstructed and vibes like a pushy car salesman. Unsubscribing and uninstalling 😡👎 ### 1/5 — Used to be a good app. Now constant upselling! *2026-05-18, version 3.16.1* This used to be a good app but now every other day it tries to upsell you for multiple additional expensive services. If you want to be interrupted constantly by ads, get this app. Once a week ads is OK but every day or every other day is too much. The place to go for harassing ads is Facebook but I don’t need harassment when trying to care for my diabetes. ## Most praised reviews (10 highest-rated) ### 5/5 — Update: OMG they fixed it! *2026-06-29, version 3.16.2* Update: They added sliders in the settings to turn off the additional "features" and now I have a useful app again. The rest of my subscription will be used with gratitude! I will be happy to renew at the original price if they don't attempt this monstrous behavior again! Old: The latest update destroyed the functionality of the app IMO. I paid for a subscription and have been using it for a year without issue and now I have to close and swipe away "share the app!" And "upgrade" advertising, I have to scroll past a "daily carb budget" widget to access the part I actually use and there's no way to remove it and now they want to double the subscription??? It used to provide a simple way to track meds, blood sugar, weight, insulin, etc and now it is cluttered and obstructed and vibes like a pushy car salesman. Unsubscribing and uninstalling 😡👎 ### 5/5 — Great App but can’t use the Carb area *2026-05-31, version 3.16.1* Love this app but please show how the carb area works. Changing the budget is easy can’t seem to log any current grams Thanks ### 5/5 — Excellent, attentive developers. *2026-05-16, version 3.16.1* Does everything I need it to do, and even more. And when a problem came up, the company paid attention and fixed it quickly. That kind of service is hard to find anymore. ### 5/5 — Fixed and offered 50% off upon renewal. 😊 *2026-05-14, version 3.16.0* App stopped working ### 5/5 — Working really well until latest update *2026-05-10, version 3.15.0* Latest update just sits there saying it’s updating data and will not allow me to save new glucose data points ### 5/5 — Fix the update!! *2026-05-10, version 3.15.0* I’ve been using this app for the last two years and not had an issue! It’s been great! After the update a week ago, it’s not allowing me to go back and post it because the whole app froze and I couldn’t do anything, unless I hooked it to my Apple health or my actual device, which I don’t want to do to either, so please fix the issue! After paying what I have paid for this app, I shouldn’t have to deal with the issue. ### 5/5 — Great app *2026-03-20, version 3.14.1* This is a great app that helps me take some control over my blood sugar levels. ### 5/5 — New user *2026-03-09, version 3.14.1* So far so good ### 5/5 — App doesn’t work after update - revision *2026-03-03* Be aware if your monitor is not listed, ie using other, it may not work after an update. Loved the app for 2 months. Very few apps protect user privacy so this is disappointing. The graph was particularly useful for monitoring trends. Now I’m out 10 months of subscription since the app no longer syncs. FYI I use the Contour next GEN monitor. Edit: the developers quickly released an update that resulted in me revising my rating to 5 star. The app now syncs perfectly and I’m back to using the app I prefer. ### 5/5 — Great App is crashing *2026-02-24, version 3.12.0* I’ve used this app for 8 months it worked great until today. Keeps crashing. I saw new message about latest update and support for something new. Crashed 4-5 times while trying to sync with glucose monitor. I finally entered data manually. --- *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 2026-09-04.*