Luka – Blood Glucose Readings

Luka – Blood Glucose Readings

CGM Widgets & Live Activities

40 ratings
34 reviews
Free
In-App Purchases

Details

  • Released
  • Updated

Features

Luka – Blood Glucose Readings screenshot #1 for iPhone
Luka – Blood Glucose Readings screenshot #2 for iPhone
Luka – Blood Glucose Readings screenshot #3 for iPhone
Luka – Blood Glucose Readings screenshot #4 for iPhone
Luka – Blood Glucose Readings screenshot #5 for iPhone
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About

Track your glucose levels with customizable widgets for your iPhone, Apple Watch, and CarPlay. Get frequent, instant updates and quick access to your preferred glucose monitoring app. Your data remains private and is for educational purposes only.

✓Lock Screen widgets
✓Home Screen widgets
✓Apple Watch widgets
✓Live Activities for real-time monitoring
✓Instant reading refresh
✓Quick launch to Dexcom app
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What's New in Luka

2.9.3

September 14, 2026

- Adds support for launching Dexcom ONE+ - Fixes a rare issue where Live Activities didn’t automatically restart

Subscription plans

Glucose Tab

Helps pay for the server that powers Live Activities.

$0.991 Month
How to cancel Luka subscription ⁉️

User reviews

Genuinely a fantastic app, and exactly what I needed

It’s hard for me to stay aware of my blood sugar during my busy day without turning on every possible alarm and alert for my Dexcom. It keeps me aware without being invasive and anxiety-inducing. Just having my blood sugar + trending arrow at the top of my screen in the dynamic island and the notification center has genuinely changed my time in range significantly. Definitely excels over Dexcom’s widget choices (or lack of). Fantastic app with customization options, and it’s done without being too complicated or too simple. Quite nice looking/feeling UI too!! The only “in-app purchase” is an optional monthly donation to the dev, which I was very glad to see and contribute to (absolutely NONE of the app’s features are behind a paywall). Compatible with multiple CGM systems, and with iPhones, iPads, AND Apple Watch. Big fan of the watch face widget, so even when I’m busy I can check on my sugar by glancing at my wrist. I can’t say I’ve ever written a review on the App Store, but I’m just so overjoyed that this app is useful, functional, easy to use, well-designed, AND completely free. Much much much love from me and my doctors <33
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Must have for quick CGM monitoring

I use this to track my teenager’s level and its way better than the stock Dexcom app. The live activity syncs seamlessly to my watch and my Mac on the latest OS versions. Great implementation, great app. Thank you!

Unable to log in

I love this app. Simple and easy but a few days ago I haven’t been able to log in. Just says that something went wrong try later. I’ve deleted it and I am entering the right info and nothing. PLEASE FIX 😭

Fantastic CGM companion with one small feature request

Overall, Luka works really well. The seamless Dexcom G7 sign-in is a huge plus; no annoying third-party accounts required like other apps force you to do.

However, the Home Screen widgets could use some refinement. On the widget with the graph line, the blood glucose reading is too small to read at a quick glance. While the large-number widget fixes the text size, it lacks the graph line entirely, and neither Home Screen widget shows the delta (+/- change).

The Lock Screen widget already nails the perfect combination of data, including the delta, which is critical when working out or doing tasks around the house. Please consider bringing that exact functionality and layout to the Home Screen widgets!
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Follow app syncing?

Can this be used with Dexcom follow app as I am a T1D parent and would like to have access to these widgets?

Developer apps

FAQ

What does Luka do?

Luka provides widgets and Live Activities to display your glucose readings from your CGM directly on your iPhone's Lock Screen, Home Screen, and Apple Watch. It offers frequent updates and allows for instant refreshing of readings.

What are the key features of Luka?

Key features include customizable widgets for various Apple devices, Live Activities for real-time glucose monitoring, the ability to refresh readings instantly, and a quick launch function to your preferred Dexcom app.

Is Luka free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned.

What devices is Luka compatible with?

Luka is designed for Apple devices, including iPhones (for Lock Screen and Home Screen widgets, and Live Activities), Apple Watches, and can be used in CarPlay.

How is my glucose data used?

Your glucose data is provided for educational purposes only and is not used to treat medical conditions. The app ensures your data stays private and collects no personal or medical information.