Comparison

Intermittent Fasting Flow vs FastFlow

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

Head to head
About

Intermittent Fasting Flow

Track your fasting periods with a clean, ad-free timer. Choose from various fasting plans and monitor your progress with live widgets. Sync data with Apple Health and use Siri shortcuts for hands-free control.

Highlights
  • Ad-free fasting timer
  • Lock screen and home screen widgets
  • Multiple fasting plan durations
  • Customizable start times
  • Streak tracking and milestone badges
  • Apple Health integration
  • Siri shortcuts
Features
Read full description

Ad-Free. Always. Intermittent Fasting Flow is a clean, distraction-free fasting tracker built for people serious about their health. Choose your fasting plan, track your hydration, and learn the science behind every fast — all in one beautiful app. FASTING TIMER Choose from 12, 14, 16, 18, or 20-hour plans. Live progress ring, streak tracking, and milestone badges keep you motivated every step of the way. HYDRATION TRACKING Stay hydrated during your fast. Set a daily water goal and log intake with one tap — small cup, glass, bottle, or custom amount. LEARN Curated articles from trusted sources on intermittent fasting science, tips, and protocols. Know what's happening in your body while you fast. WIDGETS & LIVE PROGRESS Lock screen and home screen widgets keep your fasting and hydration status visible all day — without opening the app. APPLE HEALTH & SIRI Sync fasting sessions to Apple Health as mindful minutes. Use Siri shortcuts to start or end a fast hands-free. COMPLETELY AD-FREE No ads. No popups. No distractions. The 16:8 plan is free, forever. Unlock all plans and Pro features with a subscription.

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 anytime—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

Screenshots

Intermittent Fasting Flow4 screens
FastFlow4 screens

Verdict

The call

The clearest difference is iOS requirement: FastFlow at 15.1 against Intermittent Fasting Flow's 17.6. On price, update cadence, ads and in-app purchases 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. Intermittent Fasting Flow sells 2 in-app purchases, starting at $1.99 per month and FastFlow sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Intermittent Fasting Flow ships an update every 4 days, FastFlow every 2 days. The most recent releases landed on September 22, 2026 and June 26, 2026 respectively.

Scorecard1 real difference · 9 level
Intermittent Fasting Flow versus FastFlow: the parameters behind the verdict, then further details
ParameterIntermittent Fasting FlowFastFlow
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.1 — better
Further details — not scored
Size6 MB35 MB
Age rating4+4+
DeveloperIVAYLO PLAMENOV VACHKOVUprise iX LLC

In-app purchases

2 purchases

Intermittent Fasting Flow

Subscriptions2
  • Monthly7 Days trial$1.991 Month
  • Yearly7 Days trial$19.991 Year
2 purchases

FastFlow

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

Questions

Is Intermittent Fasting Flow free?
Intermittent Fasting Flow is free to download, with in-app purchases available.
Is FastFlow free?
FastFlow is free to download, with in-app purchases available.
Do Intermittent Fasting Flow or FastFlow have ads?
Neither Intermittent Fasting Flow nor FastFlow shows ads.
Which is updated more often, Intermittent Fasting Flow or FastFlow?
Intermittent Fasting Flow ships an update every 4 days, and FastFlow every 2 days. Most recently, Intermittent Fasting Flow was updated on September 22, 2026 and FastFlow on June 26, 2026.

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