GlucosePhone vs Kadenz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GlucosePhone
Easily track and visualize your blood sugar levels directly on your iPhone. Retrieve and display glucose data from your Freestyle Libre Link account, with optional Apple Health integration. Your health data is processed securely and locally on your device.
- Blood sugar level tracking
- Freestyle Libre Link data retrieval
- Home Screen and Lock Screen widgets
- Optional Apple Health integration
- Local and secure data processing
- Trend visualization
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GlucosePhone: Your Blood Sugar Levels – Always in View. With GlucosePhone, you have full control over your blood sugar levels, directly and discreetly on your iPhone. This app, specially designed for the iPhone, allows you to quickly and easily retrieve and visualize your glucose data from your Freestyle Libre Link account. Your values at a glance: See your current blood sugar levels and their trend directly in the app. For a quick overview, you can even display your values as a widget on your Home Screen or Lock Screen. Please note that widgets do not update data continuously. To get the most up-to-date values, simply open the app – the data will then update automatically. Optional: Apple Health Integration. Do you want to see your glucose data in Apple Health too? GlucosePhone offers you the optional ability to sync your blood sugar levels with Apple Health, giving you a comprehensive overview of your health data in one central place. Security and Data Privacy First. We understand how important the protection of your health data is. GlucosePhone processes all your blood sugar levels and your login credentials for the Freestyle Libre Link account exclusively locally and securely on your device in the iOS Keychain. No data is stored on external servers or shared with third parties. Important Note: This app is solely for the visualization and monitoring of blood sugar levels. The app is not a substitute for medical advice or treatment. Always consult a doctor or healthcare professional for health-related questions. For more information and our legal notice, please visit our website: glucosephone.chadly.de Questions or issues? We're here to help! Contact us at: glucosephone@chadly.de P.S. Have you already seen our companion apps for macOS and watchOS? Search for "GlucoseDesk" on the Mac App Store and for "GlucoseWatch" on the iOS App Store.
Kadenz
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Train with the sensors you already own. Kadenz connects your iPhone directly via Bluetooth to an FTMS-compatible indoor bike and, optionally, to a heart rate chest strap. Power, cadence, speed, distance, and heart rate are displayed clearly in real time during your workout. Once you finish, your workout is saved to the Apple Health app. YOUR LIVE METRICS • Power in watts • Cadence • Speed and distance • Heart rate with five configurable training zones • Most recently saved SpO₂ value from the Health app FLEXIBLE CONNECTIVITY Kadenz supports FTMS-compatible indoor bikes regardless of manufacturer. For heart rate data, the app automatically uses the best available source: a chest strap, Apple Watch, or the bike itself. Even without a connected bike, you can start a free workout and track your heart rate and workout duration. IPHONE AND APPLE WATCH Apple Watch is optional. When used, it can record the workout and measure your heart rate directly. You can pause, resume, and end workouts from both iPhone and Apple Watch. DIRECTLY IN THE HEALTH APP Kadenz saves your indoor cycling workout to the Health app with all available power, cadence, speed, distance, heart rate, and energy data. In Kadenz, you can also view previous workouts, weekly and overall totals, an eight-week trend, and detailed charts. Custom titles and notes are stored only on your iPhone. TRAIN WITHOUT DISTRACTIONS The optional Auto-Pause feature automatically pauses your workout when no cadence is detected for five seconds. As soon as you start pedaling again, the workout resumes immediately. Large, color-coded metrics keep all important data easy to read during training. PRIVACY BY DESIGN No account. No ads. No analytics. No tracking. No Kadenz cloud. Your workout and health data remain on your devices and in the Health app. Kadenz does not measure SpO₂ itself and is not a medical device. REQUIREMENTS • iOS 17 or later • An FTMS-compatible Bluetooth indoor bike is required for bike metrics • Apple Watch and a heart rate chest strap are optional • Not all bikes provide every metric
Screenshots
Verdict
The clearest difference is price: Kadenz at Free against GlucosePhone's $3.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Kadenz is free to download; GlucosePhone costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | GlucosePhone | Kadenz |
|---|---|---|
| Price | $3.99 | Free — better |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Chadly Marouane | Digitmedia e.K. |
In-app purchases
GlucosePhone
No in-app purchases
Kadenz
No in-app purchases









