Comparison

GKI Tracker vs Keto Clock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • GKI calculation dashboard
  • Health app data sync
  • Historical progress tracking
  • Keto food discovery
  • Keto grocery list management
Features
Read full description

- 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

About

Keto Clock

This app helps you understand your body's metabolic state and optimize fat burn. It offers personalized predictions, macro tracking, and guidance for weight loss and improved metabolic health, whether you're following a keto diet or not.

Highlights
  • Personalized fat burn predictions
  • Metabolic state tracking
  • Fasting timer
  • Customizable macro targets
  • Barcode scanning for food tracking
  • Visual food guides and recipes
  • Advanced health metrics
Read full description

KetoClock provides personalized metabolic state predictions; the length of time in each of the Storing Carb and Burning Carb state as well as how long it will take you to reach maximum fat burn state (keto). You will gain insights into how your body uses and stores carbs based on your daily exercise, helping you to create healthy habits, lose weight, and feel great! Tracking your macros is quick and easy, helps you stay on track, and allows us to estimate your metabolic state. Simply snap a barcode, search the database of nearly 1 million foods for a specific item, or add an entire list of foods at once using standard or spoken text (dictation). KetoClock also provides daily guidance through personalized macro targets, exercise recommendations, educational guides, extensive visual food guides, and countless inspirational recipes. Not interested in keto? No problem. KetoClock allows you to customize your daily macro targets based on net carbs to suit your needs and provides expert insights and plenty of motivation beneficial to anyone trying to lose weight or improve their overall metabolic health. KEY FEATURES PERSONALIZED PREDICTIONS OF TIME TO MAX FAT BURN - know how long until you are in the metabolic state of max fat burn METABOLIC STATE METER - track your current metabolic state (storing carbs, burning carbs, max fat burn) and energy balance transitions on your way to maximum fat burn FASTING CLOCK - automatically tracks your time between meals so you can meet your fasting goals and supercharge your weight loss CUSTOMIZABLE DAILY MACRO TARGETS - keto not the right fit? Select a different net carb target that aligns with your lifestyle MACROS TRACKING - simple and efficient macro tracking using voice recognition and natural language processing technology or barcode scanning EXERCISE TRACKING - track your daily exercise and watch how it speeds up your time to max fat burn KETO AND FASTING GUIDES - learn the basics of keto and fasting and how to avoid or minimize the side effects of keto flu ONE OF A KIND VISUAL FOOD GUIDES - compare macro profiles of different foods and find plenty of low carb inspiration with our extensive visual food guides EXTENSIVE LIBRARY OF LOW CARB RECIPES – browse by category or search by ingredient RECIPE BUILDER – create your own recipes and analyze the nutritional profile ADVANCED HEALTH METRICS – in-depth physiological analysis that includes daily energy expenditure, body fat percentage, waist-to-height ratio, predicted VO2max ADVANCED PROGRESS REPORTS – view your history for daily fasting times, body metrics, advanced health metrics to keep track of your progress and help you stay motivated. 7-day free trial for new customers. Select a subscription plan and cancel any time prior to the 7 days ending at no cost. Your subscription will automatically renew after any applicable promotional period and your Apple ID account will be charged the subscription price on a recurring basis until you cancel. You can cancel your subscription at any time through your Apple ID account settings. If you cancel your subscription, the cancellation will go into effect at the end of your current subscription period, as applicable. You will have continued access to Ketoclock for the remainder of your paid subscription period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GKI Tracker4 screens
Keto Clock4 screens

Verdict

The call

The clearest difference is rating: Keto Clock at 5.0 against GKI Tracker's 3.6. Keto Clock also leads on review sentiment (100% vs 59%) and ads (none vs shown). GKI Tracker's advantage is in-app purchases (none vs 3) and ratings volume (14 vs 3). On price and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Keto Clock sells 3 in-app purchases, starting at $8.99 per month. GKI Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Keto Clock holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 14 and 3 respectively. Written reviews point the same way: 59% of GKI Tracker's written reviews are positive against 100% of Keto Clock's.

UpkeepUpdate frequency

GKI Tracker ships an update every 5 months, Keto Clock every 2 weeks. The most recent releases landed on July 7, 2026 and September 8, 2026 respectively.

Scorecard8 real differences · 2 level
GKI Tracker versus Keto Clock: the parameters behind the verdict, then further details
ParameterGKI TrackerKeto Clock
PriceFreeFree
Rating3.6 (14 ratings)5.0 (3 ratings) — better
Positive reviews59.1% of reviews100.0% of reviews — better
Number of ratings14 — better3
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.1 — better15.0
Further details — not scored
Size36 MB68 MB
Age rating12+4+
DeveloperMatthias MellouliKetoclock Inc.

Customer experience

GKI Tracker

All ratings14 ratings
Positive57.1%
Neutral35.7%
Negative7.1%
Written reviews22 reviews
Positive59.1%
Neutral27.3%
Negative13.6%

Keto Clock

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GKI Tracker

No in-app purchases

3 purchases

Keto Clock

Subscriptions3
  • Monthly7 Days trial$8.991 Month
  • Quarterly7 Days trial$19.993 Months
  • Annual7 Days trial$54.991 Year

Questions

Is GKI Tracker free?
GKI Tracker is free to download, with no in-app purchases.
Is Keto Clock free?
Keto Clock is free to download, with in-app purchases available.
Which has better reviews, GKI Tracker or Keto Clock?
Keto Clock is rated higher. GKI Tracker averages 3.6 out of 5 from 14 ratings, while Keto Clock averages 5.0 from 3 ratings.
Do GKI Tracker or Keto Clock have ads?
GKI Tracker shows ads; Keto Clock does not.
Which is updated more often, GKI Tracker or Keto Clock?
GKI Tracker ships an update every 5 months, and Keto Clock every 2 weeks. Most recently, GKI Tracker was updated on July 7, 2026 and Keto Clock on September 8, 2026.

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