# Gluco-Tracker — Visualize nightscout glucose > Nightscout glucose visualization and alerts for iOS devices. (iPhone/iPad app by Gerrit Grunwald.) - Source: https://appshunter.io/ios/app/gluco-tracker/id1526976290 (this page in markdown: same URL + `.md`) - Developer: [Gerrit Grunwald](https://appshunter.io/developer/1494633247) - Category: Medical, Health & Fitness - Price: Free - Rating: 3.33/5 from 6 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 7 MB - Languages: Dutch, English, French, German, Italian, Polish, Portuguese, Romanian, Russian, Chinese and 3 more - Released: 2020-08-10 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/gluco-tracker/id1526976290/reviews.md ## What is Gluco? Disclaimer! Don't use this app for medical decisions. It comes with absolutely no warranty. Use it at your own risk! Gluco-Tracker is an app that visualizes your blood glucose values from a Nightscout server. Features are: - Define values for acceptable glucose values. - Define values for normal glucose values. - Receive notifications when values are out of range. - See values from last 14 days, 7 days, 72 hours, 48 hours, 24 hours, 12 hours, 6 hours and 3 hours. - Supports widgets (>= iOS 14) - Supports lock screen widget (updates not more than 50x a day) - Can add blood glucose values to Apple Health - Supports critical alert notifications - Can remind you on changing catheter, sensor and pump battery - Can show you steps you walked today - Can show you percentage of training goal reached - Translations available for English, German, Dutch, French, Italian, Polish, Portoguese, Romanian, Russian, Spanish, Swedish, Simplified Chinese and Ukrainian - Experimental support for meals Attention: When running Gluco-Tracker with a Gluroo account, please fill in the Gluroo url as the nightscout url and the Gluroo API key as the token. Please check out www.nightscout.info for information about how to setup your own Nightscout server. ## Key features - Nightscout glucose visualization - Customizable glucose range alerts - Historical data views (3-14 days) - Widgets and lock screen support - Apple Health integration - Critical alert notifications - Catheter/sensor/battery reminders ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/gluco-tracker/id1526976290/reviews.md ### 3/5 — Apple Watch support removed? *2023-08-07* Edit: I got an explanation from the developer and a solution is coming. It would have been nice to have that explanation on the release notes though. Why was watch support removed? This was the single reason I used this app. Is there an explanation of removing this? **Developer response:** Apple watch support is back and the most important part works already again, you can get your current blood glucose on the watch itself. And if you have an 4/5G version you can get the value even without having the phone with you. The complications do not show the value because you are only able to get around 50 updates per day which would be around an update every 30 minutes. I will look into updating the complications in the background again but that needs more time. ### 1/5 — Apple Watch support removed? *2023-08-05* Why was watch support removed? This was the single reason I used this app. Is there an explanation of removing this? ### 5/5 — Excellent and simple *2022-05-28, version 5.2* It’s the small things, this is the only Nightscout integrated app I’ve found that has a homesceen widget that displays my blood sugar instantly. Thanks. ### 1/5 — Doesn’t update quick enough to be useful *2022-04-23, version 5.1* Minimum update time is 3h. That’s about as much use as getting your blood sugar reading sent to you in the post. Should be 5 minutes max! 🙄 ### 1/5 — doesn´t work *2022-02-07* just doesn´t work ### 1/5 — Wrong unit of measurement on Apple Watch *2020-11-07, version 3.3* This app fails to show mmols on the Apple Watch, despite having that selected in the app. ### 5/5 — Great iOS 14 support *2020-09-22* Thrilled to have a widget on my Home Screen now that shows my numbers! Thank you! ### 2/5 — Good *2020-09-21* But it doesn’t switch to mmol numbers when u change the settings **Developer response:** This should be fixed in Version 2.6. Please let me know if it still doesn‘t work for you ## Frequently asked questions about Gluco ### What is Gluco-Tracker used for? Gluco-Tracker visualizes your blood glucose values from a Nightscout server. It helps you define acceptable and normal glucose ranges, and notifies you when values are out of range. ### Does Gluco-Tracker provide medical advice? No, Gluco-Tracker explicitly states it should not be used for medical decisions and comes with no warranty. Users should use it at their own risk. ### What historical data can Gluco-Tracker show? Gluco-Tracker can display glucose values from the last 14 days, 7 days, 72 hours, 48 hours, 24 hours, 12 hours, 6 hours, and 3 hours. ### Does Gluco-Tracker support widgets? Yes, Gluco-Tracker supports widgets for iOS 14 and later, including lock screen widgets that update up to 50 times a day. ### Can Gluco-Tracker connect to Apple Health? Yes, Gluco-Tracker can add blood glucose values to Apple Health, allowing for further integration with your health data. ### How often is Gluco-Tracker updated? The latest version is 17.19.0, and the app was last updated on May 29, 2024, indicating regular updates. ### What platforms is Gluco-Tracker available on? Gluco-Tracker is supported on Mac, Apple Watch, iPhone, and iPad devices. ### Does Gluco-Tracker have ads? No, Gluco-Tracker does not contain advertisements. ## Version history (last 5 releases) ### 17.19.0 — 2024-05-29 Minor modifications in the pattern view related to font size and height of "zones" area (e.g. High values over night etc.) ### 17.17.0 — 2024-04-16 Internal modifications to prepare for upcoming snooze feature and stabilization. ### 17.15.0 — 2024-04-15 Added required privacy info and modified some internal code. ### 17.13.0 — 2024-01-05 The indicators for the catheter, sensor and battery reminders will only be visible if the reminders are enabled in the settings to avoid confusion. ### 17.11.0 — 2024-01-04 - Added accessoryInline widget for the lock screen - Further adjustments to widget font size in general ## More apps by Gerrit Grunwald - [PhotoSpotter](https://appshunter.io/ios/app/photospotter/id1514769666) - [TargetNavigator](https://appshunter.io/ios/app/targetnavigator/id6474924392) - [OnTravel](https://appshunter.io/ios/app/ontravel/id6664062467) - [SugrMon](https://appshunter.io/ios/app/sugrmon/id6739840672) - [ConfiCheck](https://appshunter.io/ios/app/conficheck/id6741014537) All apps by Gerrit Grunwald: https://appshunter.io/developer/1494633247 --- *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 2026-06-10.*