Comparison

FastFlow vs FastMode

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

FastMode

Features
Read full description

FastMode is the intermittent fasting app built for people who want real results β€” without the complexity of a diet. Answer a few questions, get a fasting plan personalized to your body and goals, and start your first fast today. HOW IT WORKS After 12 hours without food, your body enters fat-burn mode. After 16 hours, it hits peak burn. FastMode tracks every minute and tells you exactly where you are β€” so you always know when the science is working. YOUR PLAN, BUILT AROUND YOU Tell us your weight goal, eating habits, activity level, and schedule. FastMode calculates your optimal fasting window β€” no calorie counting, no meal planning required. FEATURES β€’ Live fasting timer with real-time fat-burn progress β€’ Metabolic status β€” see which stage your body is in β€’ Streak calendar to keep your momentum going β€’ Weight tracking to watch progress day by day β€’ Smart notifications when you hit key milestones β€’ Personalized plan based on your body and goals NO DIET REQUIRED FastMode works with any food. The science is in the timing, not the menu. Eat what you enjoy β€” within your window. BACKED BY RESEARCH Harvard Health supports intermittent fasting for weight loss. Studies link fasting to more stable energy, improved gut health, and cell repair processes that may support long-term health. Most people notice changes within the first week. Start today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FastFlow4 screens
FastMode4 screens

Verdict

The call

The clearest difference is update cadence: FastFlow at every 2 days against FastMode's weekly. On price, ads, 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 FastMode sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FastFlow ships an update every 2 days, FastMode weekly. Both last shipped on October 25, 2026.

Scorecard1 real difference Β· 5 level
FastFlow versus FastMode: the parameters behind the verdict, then further details
ParameterFastFlowFastMode
PriceFreeFree
Update frequencyEvery 2 days β€” betterWeekly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.1
Further details β€” not scored
Size35 MB43 MB
Age rating4+12+
DeveloperUprise iX LLCAleksander Sucheta

In-app purchases

2 purchases

FastFlow

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

FastMode

Subscriptions2
  • Fast Mode PRO1 Month trial$4.991 Month
  • Fast Mode PRO7 Days trial$34.991 Year

Questions

Is FastFlow free?
FastFlow is free to download, with in-app purchases available.
Is FastMode free?
FastMode is free to download, with in-app purchases available.
Do FastFlow or FastMode have ads?
Neither FastFlow nor FastMode shows ads.
Which is updated more often, FastFlow or FastMode?
FastFlow ships an update every 2 days, and FastMode weekly. Most recently, FastFlow was updated on October 25, 2026 and FastMode on October 25, 2026.

Other comparisons