Comparison

Kcal it! AI Calorie Tracker vs Fastiya

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

Head to head
About

Kcal it! AI Calorie Tracker

This app uses AI to help you track your calorie and macronutrient intake with detailed insights and customizable goals. It offers fast food logging, recipe creation, and integrates with health platforms for a comprehensive nutrition diary.

Highlights
  • AI meal analysis
  • Fast food logging
  • Customizable macro goals
  • Recipe and meal creation
  • Nutrition trend analysis
  • Apple Health integration
  • Barcode scanning
Features
Read full description

Snap a meal and Kcal it! turns it into an editable calorie and macro entry. The AI estimates calories, protein, fat, and carbs from a meal photo, a nutrition label, or several photos at once. You check the portions, fix anything that looks off, and log it to your diary in a tap. SCAN THE WAY YOU EAT • Select up to 10 food photos at once; results appear one by one in the cart • Add a short note before analysis, like “half portion” or “no sauce” • Correct an ingredient or a portion in your own words and the macros update • Search the built-in food database, scan a barcode, or create your own foods and dishes PLAN WITH FLEXIBLE TARGETS • Set protein, fat, and carbs in grams, as a percentage of calories, or relative to body weight • Dynamic targets can follow your calorie goal and your activity from Apple Health • Track water and intermittent fasting next to your meals SEE MORE THAN ONE DAY • The week carousel shows seven days of calorie rings at the top of Today • Statistics compare calories, macros, activity, and energy balance over a week, month, six months, or year • Milestones give a long-term goal a timeframe, visible progress, and the measures that matter to you KEEP YOUR USUAL FOOD CLOSE • Lists group products and meal sets for cafés, stores, food delivery, or your own categories • Meal photos and food images make your diary easy to scan at a glance • Widgets and Apple Watch show today’s summary without opening the app AI results are estimates. Check ingredients and portions before saving. AI features and some advanced tools require a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Fastiya

Track your body's metabolic changes hour by hour during fasting. An AI coach provides personalized insights based on your data, helping you build consistent habits and monitor key health metrics.

Highlights
  • Hour-by-hour body change tracking
  • AI fasting coach
  • Multiple fasting protocols
  • Advanced health metric tracking
  • Wearable device synchronization
  • Habit building tools
  • Daily journaling and insights
Features
Read full description

Track every hour of your fast and get AI coaching built on your real data — not generic tips. Try Fastiya Pro free for 7 days. YOUR BODY, HOUR BY HOUR Watch your body shift from fat-burning to ketosis to autophagy in real time. Milestone alerts tell you exactly what's happening at 8h, 12h, 16h, and beyond — backed by science, not guesswork. AN AI COACH THAT ACTUALLY KNOWS YOU Ask questions and get answers built on your real fasting history, sleep, recovery, and stress data — not one-size-fits-all advice. Wake up to a Morning Report summarizing your sleep, recovery, and readiness before you even open the app. MACROS & NUTRITION, SIMPLIFIED Log meals and see your day at a glance: calories plus protein, carbs, and fat. Get smart feedback on your goals, hydration, and diet — no spreadsheets required. SLEEP, FASTING & STRESS, CONNECTED Journal Insights surfaces the correlations that matter — how your sleep affects your fasting, how stress shows up in your recovery — so you know what's actually moving your progress. SYNC YOUR WEARABLES Connect Fitbit, Oura Ring, or WHOOP for deeper recovery and readiness data layered directly into your coaching. KNOW YOUR BIOLOGICAL AGE See how your habits are shaping your biological aging clock, not just the calendar. STAY ON TRACK Streaks, achievements, and smart notifications keep you motivated without the noise — context-aware nudges, not constant pings. ON YOUR WRIST A dedicated Apple Watch app keeps your fast, streak, and body state visible without reaching for your phone. Try Fastiya Pro free for 7 days — full access to AI coaching, wearable sync, bio age, and advanced analytics. Cancel anytime. Terms of Use (EULA): https://fastiya.co/terms-of-service/ Privacy Policy: https://fastiya.co/privacy-policy/

Screenshots

Kcal it! AI Calorie Tracker4 screens
Fastiya4 screens

Verdict

The call

The clearest difference is update cadence: Kcal it! AI Calorie Tracker at every 4 days against Fastiya's fortnightly. Fastiya's advantage is iOS requirement (17.0 vs 26.1). On price, rating, ratings volume and ads 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. Kcal it! AI Calorie Tracker sells 2 in-app purchases, starting at $2.99 per month and Fastiya sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Kcal it! AI Calorie Tracker against 5.0 for Fastiya. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Kcal it! AI Calorie Tracker ships an update every 4 days, Fastiya fortnightly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Kcal it! AI Calorie Tracker versus Fastiya: the parameters behind the verdict, then further details
ParameterKcal it! AI Calorie TrackerFastiya
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 4 days — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS26.117.0 — better
Further details — not scored
Size78 MB60 MB
Age rating4+12+
DeveloperPavel IvanovOromo Oromia

Customer experience

Kcal it! AI Calorie Tracker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Fastiya

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Kcal it! AI Calorie Tracker

Subscriptions2
  • Premium AI7 Days trial$2.991 Month
  • Premium AI7 Days trial$14.991 Year
2 purchases

Fastiya

Subscriptions2
  • Monthly Premium7 Days trial$9.991 Month
  • Annual Premium7 Days trial$79.991 Year

Questions

Is Kcal it! AI Calorie Tracker free?
Kcal it! AI Calorie Tracker is free to download, with in-app purchases available.
Is Fastiya free?
Fastiya is free to download, with in-app purchases available.
Which has better reviews, Kcal it! AI Calorie Tracker or Fastiya?
Kcal it! AI Calorie Tracker and Fastiya are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Kcal it! AI Calorie Tracker or Fastiya have ads?
Neither Kcal it! AI Calorie Tracker nor Fastiya shows ads.
Which is updated more often, Kcal it! AI Calorie Tracker or Fastiya?
Kcal it! AI Calorie Tracker ships an update every 4 days, and Fastiya fortnightly. Most recently, Kcal it! AI Calorie Tracker was updated on October 30, 2026 and Fastiya on November 5, 2026.

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