GKI Tracker vs Ketone Meter Breathalyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GKI Tracker
Track your glucose and ketone levels to calculate your GKI. Sync data with your health app, review your progress in history, and discover keto-friendly foods with a built-in grocery list manager.
- GKI calculation dashboard
- Health app data sync
- Historical progress tracking
- Keto food discovery
- Keto grocery list management
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- Enter your Glucose and your Ketones to find out your GKI in your dashboard. - Sync your Glucose Level with the Health App - Find all your previous entries in your history and see your improvements. - Discover Keto foods and manage your Keto Grocery list
Ketone Meter Breathalyzer
This app works with a ketone meter device to track your body's fat-burning rate in real-time. It helps you set fitness goals, analyze historical data, and optimize your diet and workouts. Seamlessly sync your data across devices to stay on track with your health journey.
- Real-time fat burning rate tracking
- Syncs with ketone meter devices
- Personalized fitness insights
- Goal setting and historical data analysis
- Optimizes workouts and diet plans
- Intuitive cross-device syncing
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DISCLAIMER: - DO NOT USE THE APP FOR MEDICAL APPLICATIONS - THE BREATH METER DEVICES CONNECTS TO THIS APP ARE NOT MEDICAL DEVICES - TEST RESULTS IN THE APP ARE NOT INTENDED TO DIAGNOSE, TREAT, CURE, OR PREVENT ANY DISEASE OR HEALTH CONDITION. Achieve peak fitness with the Fat Burning Rate Monitor, powered by the Ketone Meter app. Seamlessly integrating your smartphone and ketone meter device, this tool offers real-time tracking and personalized insights to estimate your body's fat burning rate. Set goals and analyze historical data to optimize workouts and diet plans. With intuitive syncing across devices, you can stay on track wherever you go. Streamline your fitness journey and unlock your body's full potential. Get your ketone meter device and app now and take control of your fat burning journey for a healthier, stronger you!
Screenshots
Verdict
The clearest difference is review sentiment: GKI Tracker at 59% against Ketone Meter Breathalyzer's 0%. GKI Tracker also leads on rating (3.8 vs 2.0) and ratings volume (16 vs 4). Ketone Meter Breathalyzer's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads, in-app purchases and monetization model 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.
GKI Tracker holds the better App Store score, 3.8 against 2.0. Both are backed by a comparable volume of ratings — 16 and 4 respectively. Written reviews point the same way: 59% of GKI Tracker's written reviews are positive against 0% of Ketone Meter Breathalyzer's.
GKI Tracker ships an update every 5 months, Ketone Meter Breathalyzer every 2 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | GKI Tracker | Ketone Meter Breathalyzer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (16 ratings) — better | 2.0 (4 ratings) |
| Positive reviews | 59.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 16 — better | 4 |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 36 MB | 47 MB |
| Age rating | 12+ | 17+ |
| Developer | Matthias Mellouli | ReFleX Wireless Inc. |
Customer experience
GKI Tracker
Ketone Meter Breathalyzer
In-app purchases
GKI Tracker
No in-app purchases
Ketone Meter Breathalyzer
No in-app purchases
Questions
Is GKI Tracker free?
Is Ketone Meter Breathalyzer free?
Which has better reviews, GKI Tracker or Ketone Meter Breathalyzer?
Do GKI Tracker or Ketone Meter Breathalyzer have ads?
Which is updated more often, GKI Tracker or Ketone Meter Breathalyzer?
Other comparisons
