Comparison

FastFlow vs FastFlow

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

Head to head
About

FastFlow

Features
Read full description

FastFlow helps you build a consistent intermittent fasting routine with a clean timer, simple plans, and quick daily check-ins. Whether you’re doing 16:8, 14:10, 18:6, 20:4, or a custom schedule, FastFlow keeps your day clear: start a fast in one tap, see exactly when your eating window begins, and track how you feel so you can learn what works. What you can do with FastFlow - Fasting timer (one tap) - Start, end, or break a fast anytime - Countdown + progress at a glance -Clear labels for fasting vs eating time Plans & schedule - Choose a plan: 14:10, 16:8, 18:6, 20:4, or Custom - Set your eating start time and we calculate the rest - Adjust anytimeβ€”your routine should fit your life Gentle reminders - Notifications for Start fast, End fast, and Hydration - Reminders are optional and can be changed anytime in Settings Daily logs (fast check-in) - Track mood, energy, hunger - Optional weight and notes Insights & trends - Weekly/monthly performance and completion - Wellbeing averages from your logged days Subscription Details: If you choose to purchase FastFlow Premium, payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Privacy Policy: https://sites.google.com/view/fastflow-app/privacy Terms of Service: https://sites.google.com/view/fastflow-app/terms-of-use

About

FastFlow

This app combines intermittent fasting, AI calorie counting, and water tracking to help users lose weight and stay hydrated. It features an AI coach for personalized guidance and progress tracking tools.

Highlights
  • AI calorie counter with photo tracking
  • Smart intermittent fasting timer
  • Water intake tracking and reminders
  • AI fasting coach for personalized advice
  • Progress tracking with streaks and graphs
  • Multiple fasting protocols
Features
Read full description

FastFlow is the smart intermittent fasting tracker, AI calorie counter, and water tracker that helps you lose weight, burn fat, and stay hydrated β€” all with AI-powered guidance. Track your fasts. Count your calories with AI. Stay hydrated. All in one app. WHY FASTFLOW? Most health apps make you choose β€” fasting OR calorie counting OR water tracking. FastFlow combines intermittent fasting, AI calorie tracking, water intake tracking, and an AI coach in one simple app β€” so you actually stick with it and see results. AI CALORIE COUNTER & FOOD TRACKER Snap a photo of your meal and let AI estimate calories, macros, and nutrition instantly. No more manual searching through food databases. β€’ AI photo calorie estimator β€” just snap and track β€’ Automatic macro breakdown (protein, carbs, fat) β€’ Food scanner with AI-powered nutrition recognition β€’ Daily calorie tracker with intake history β€’ Set calorie goals and track your deficit β€’ Works with any meal β€” home cooked or restaurant SMART FASTING TIMER Start your fast with one tap. Choose from popular fasting protocols: β€’ 16:8 β€” The classic. 16 hours fasting, 8 hours eating β€’ 18:6 β€” Intermediate level for faster results β€’ 20:4 β€” The warrior protocol for experienced fasters β€’ Custom β€” Set your own fasting and eating windows Watch your body enter different fasting zones in real time: β€’ Fed State (0-4 hours) β€” Digestion and energy storage β€’ Fat Burning (4-12 hours) β€” Your body switches to burning fat β€’ Ketosis (12-18 hours) β€” Deep fat burning and mental clarity β€’ Autophagy (18+ hours) β€” Cellular repair and regeneration Your fasting timer keeps running even when the app is closed. Get notified when you hit each zone and when your fast is complete. WATER TRACKER & HYDRATION REMINDER Staying hydrated is just as important as fasting. FastFlow tracks your daily water intake and sends smart reminders so you never forget to drink water. β€’ Set your daily water goal β€’ Quick-add buttons for common amounts β€’ Track glasses, bottles, or custom amounts β€’ Smart hydration reminders throughout the day β€’ See your daily and weekly water intake history MEET YOUR AI FASTING COACH Confused about fasting? Ask your AI coach anything: β€’ "Can I drink coffee during my fast?" β€’ "What should I eat to break my fast?" β€’ "Which fasting protocol is best for weight loss?" β€’ "How do I handle hunger during a fast?" Get instant, personalized answers based on your fasting history and goals. TRACK YOUR PROGRESS β€’ Fasting streak counter β€’ Weekly and monthly summaries β€’ Time spent in each fasting zone β€’ Weight tracking with trend graphs β€’ Water intake history and streaks β€’ Personal records and milestones FREE TO USE, PREMIUM TO UNLOCK MORE FastFlow is free with everything you need to start: β€’ 3 fasting protocols (16:8, 18:6, 20:4) β€’ Water tracking with reminders β€’ Fasting timer with zone indicators β€’ 3 AI coach messages per day β€’ Streak tracking and basic stats Upgrade to FastFlow Premium: β€’ All fasting protocols including custom β€’ Unlimited AI coach conversations β€’ Advanced analytics and weekly reports β€’ Personalized recommendations β€’ Custom water goals and smart reminders β€’ Streak protection (Joker Days) β€’ Ad-free experience Subscription: FastFlow Premium is available as an auto-renewing subscription. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage and cancel subscriptions in your Apple ID Account Settings. Disclaimer: FastFlow is not a medical app and does not provide medical advice. AI calorie estimates are approximate and may be inaccurate. Consult a healthcare professional before starting any fasting, diet, or weight loss program. Not intended to diagnose, treat, cure, or prevent any disease. Privacy Policy: https://fastflowai.fit/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FastFlow4 screens
FastFlow4 screens

Verdict

The call

The clearest difference is ads: FastFlow at none against FastFlow's shown. FastFlow also leads on update cadence (every 2 days vs weekly). FastFlow's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. FastFlow sells 2 in-app purchases, starting at $2.99 per month and FastFlow sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FastFlow ships an update every 2 days, FastFlow weekly. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

Scorecard3 real differences Β· 5 level
FastFlow versus FastFlow: the parameters behind the verdict, then further details
ParameterFastFlowFastFlow
PriceFreeFree
Positive reviewsβ€”0.0% of reviews
Update frequencyEvery 2 days β€” betterWeekly
AdsNo β€” betterYes
In-app purchasesYesYes
Monetizationβ€”Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS15.113.0 β€” better
Further details β€” not scored
Size35 MB44 MB
Age rating4+4+
DeveloperUprise iX LLCLit Games Publishing LTD

In-app purchases

2 purchases

FastFlow

Subscriptions2
  • Monthly Subscription$2.991 Month
  • Weekly Subscription$8.997 Days
3 purchases

FastFlow

Subscriptions3
  • FastFlow Weekly Premium$1.997 Days
  • FastFlow Premium β€” Monthly Sub3 Days trial$4.991 Month
  • FastFlow Premium β€” Yearly Sub$29.991 Year

Questions

Is FastFlow free?
FastFlow is free to download, with in-app purchases available.
Is FastFlow free?
FastFlow is free to download, with in-app purchases available.
Do FastFlow or FastFlow have ads?
FastFlow shows ads; FastFlow does not.
Which is updated more often, FastFlow or FastFlow?
FastFlow ships an update every 2 days, and FastFlow weekly. Most recently, FastFlow was updated on October 25, 2026 and FastFlow on November 5, 2026.

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