Zukka vs FatigueSense
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zukka
This app displays real-time blood glucose data from continuous glucose monitoring (CGM) systems. It tracks glucose, insulin, and activity, offering widgets and Apple Health integration. It connects via Bluetooth to devices like Dexcom and FreeStyle Libre.
- Real-time glucose tracking
- Insulin tracking
- Activity and exercise logging
- Widgets and watch app support
- Apple Health integration
- Bluetooth CGM connectivity
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This application is based on xDrip4iO5 (also known as "xDrip for iOS" or "xdripswift") that is an open-source application to display real time blood glucose data. Key Features: - This instance and/or application and all original features within from xDrip4iO5 will always be free. - Glucose Tracking (CGM). - Insulin Tracking . - Activity & Exercise. - Widgets & Watch App. - Apple Health Integration. Privacy Policy: https://zukka.netlify.app/ [!] Regulatory Use Notice This app connects via Bluetooth to continuous glucose monitoring (CGM) systems such as Dexcom and FreeStyle Libre. These devices are approved for use in specific regions: • Dexcom G4, G5, G6 – FDA-cleared and CE-marked • FreeStyle Libre 2 – FDA-cleared and CE-marked Third-party Bluetooth accessories (e.g., MiaoMiao, BluCon, Bubble) are not medical devices and are used only to relay sensor data. [!] Disclaimer: This app is intended for use only in countries where the supported CGM systems are approved by the appropriate health authorities. This app is intended for informational and educational use only. It does not provide medical advice, diagnosis, or treatment. Always consult your healthcare provider before making any medical decisions. This app only displays data from approved CGM devices and does not modify or interpret sensor data.
FatigueSense
This app helps you understand and manage your energy levels by linking wearable data with daily check-ins. It provides insights into activity, recovery, and fatigue to help you pace your days and avoid crashing. Designed for individuals managing persistent fatigue conditions.
- Daily energy budget tracking
- Early PEM signal alerts
- Strain, recovery, HRV, RHR, and sleep tracking
- Activity planning within energy envelope
- Crash logging and individual pattern learning
- Wearable device integration (Apple Watch, Oura, Garmin, etc.)
- Manual daily entry option
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FatigueSense helps you understand your energy and pace your days, so you can do more of what matters with less risk of crashing. Built by digital health researchers, it links data from your wearable with quick daily check-ins to show how your activity, recovery, and fatigue relate over time. It is designed with and for people living with persistent fatigue — ME/CFS, long COVID, fibromyalgia, cancer-related fatigue, and other long-term conditions. What you can do • See your daily energy budget and how much you have left • Get an early signal when you may be approaching post-exertional malaise (PEM) • Track strain, recovery, HRV, resting heart rate, and sleep in one place • Plan activities that fit within your personal energy envelope • Log crashes and check-ins so the app learns your individual patterns • Connect a wearable, or use manual daily entry — no device required Works with your wearable Apple Watch, Oura, Garmin, WHOOP, Polar, Withings, Fitbit, and more. An honest, research-led approach FatigueSense is assistive and statistical. Its outputs complement your own judgment — they do not diagnose or treat any condition, and they are not validated for every diagnosis. Fatigue is not one thing, and the app does not assume all conditions behave the same way. You know your body best. FatigueSense is a wellness and self-management app. It is not a medical device and is not intended to diagnose, treat, cure or prevent any disease. Energy estimates, pacing guidance and symptom risk indicators are informational only and are not medical advice. Always speak to a qualified healthcare professional about your health, and before changing anything about your treatment or care. If you think you are having a medical emergency, contact your local emergency services.
Screenshots
Verdict
The clearest difference is update cadence: FatigueSense at daily against Zukka's every 3 weeks. On price, rating, review sentiment and ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.4 for Zukka against 4.5 for FatigueSense. Both are backed by a comparable volume of ratings — 64 and 38 respectively. Written reviews are what separate them: 75% of Zukka's written reviews are positive against 81% of FatigueSense's.
Zukka ships an update every 3 weeks, FatigueSense daily. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Zukka | FatigueSense |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (64 ratings) | 4.5 (38 ratings) — better |
| Positive reviews | 74.6% of reviews | 81.4% of reviews — better |
| Number of ratings | 64 — better | 38 |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Requires iOS | 16.2 — better | 17.0 |
| Further details — not scored | ||
| Size | 119 MB | 48 MB |
| Age rating | 4+ | 17+ |
| Developer | Ihor Zhvanko | Nana Abaogye |
Customer experience
Zukka
FatigueSense
In-app purchases
Zukka
No in-app purchases
FatigueSense
No in-app purchases









