Comparison

InterFasting vs ArcFast

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

Head to head
About

InterFasting

This app helps users succeed with intermittent fasting through scientific and systematic management. It offers AI-powered schedule and calorie recommendations, a simple timer, and comprehensive tracking of fasting hours, meals, workouts, and water intake. Users can visualize progress and receive detailed reports to build healthy habits.

Highlights
  • AI fasting schedule recommendations
  • AI food calorie calculation
  • Intermittent fasting timer
  • Customizable fasting plans
  • All-in-one health tracking
  • Fasting analysis and reports
  • Home screen widget
Features
Read full description

Ready to make intermittent fasting actually work? InterFasting is the smart fasting tracker and fasting timer that helps you stay consistent without extreme dieting. No more guessing, no complicated calorie counting — just smart tools that actually work. Why people choose InterFasting • AI Schedule Recommendations Get a personalized intermittent fasting plan based on your lifestyle — no more trial and error. • AI Calorie Counter & Food Scanner Just snap a photo of your meal. Instantly see calories and macros without manual logging. • The Easiest Fasting Timer Supports 16:8, 5:2, OMAD, and fully custom schedules. Smart alarms keep you on track. • 100% Free Customization + Ad-Free Experience Adjust your fasting windows freely and track everything in a clean, distraction-free interface. • All-in-One Health Tracker Monitor fasting hours, weight progress, meals, workouts, and water intake in one place. • Home Screen Widgets Check your fasting stage and countdown timer instantly from your home screen. • Hour-by-Hour Body Stages See what’s happening in your body during a fast (Ketosis, Autophagy, and more). • Visual Progress & Photo Diary Log meals and take progress photos to stay motivated by real results. Science-backed benefits of intermittent fasting Effective fat burning and weight loss Boosted autophagy and cellular repair Better blood sugar control Reduced inflammation Improved mental clarity and energy Perfect if you want to start intermittent fasting for the first time, stay consistent with a reliable tracker, or combine fasting with keto and healthy weight loss goals. Consistency is the key. InterFasting helps you build habits that last. Download now and start your transformation. *** Apple Health Integration *** Automatically syncs weight, steps, and workout data with the Apple Health app. ABOUT SUBSCRIPTIONS & PAYMENT • Payment will be charged to your Apple ID account at confirmation of purchase. • You can manage or cancel your subscription in your App Store Account Settings at any time. • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Terms of Service: https://www.interfasting.app/service_en Privacy Policy: https://www.interfasting.app/privacy

About

ArcFast

Track your intermittent fasting with a simple, ad-free timer. Monitor your metabolic phase, view progress charts, and customize your fasting schedule. Includes meal calorie estimates and home screen widgets.

Highlights
  • Ad-free intermittent fasting timer
  • Real-time metabolic phase tracking
  • Fasting streaks and progress charts
  • Customizable fasting schedules
  • Home screen widgets
  • Meal calorie estimation
Features
Read full description

ArcFast is a simple fasting tracker built around a free, no-ads intermittent fasting timer. Start a fast in one tap, follow your fasting window, use reminders and widgets, and review your history without clutter. KNOW YOUR BODY ArcFast displays your current metabolic phase in real-time as you fast: Sugar Burning transitions into Fat Burning, then Ketosis and Deep Ketosis. Stay informed about what's happening inside your body during every fasting window. SEE YOUR PROGRESS Fasting streaks, weekly bar charts, and detailed session history help you spot patterns and celebrate consistency. Review any missed fasts and learn from your patterns over time. BEAUTIFUL THEMES Four carefully crafted themes — Cosmos, Midnight, Cloud, and Linen — let you personalize ArcFast to match your style. Your fasting experience should feel as good as it looks. FLEXIBLE FASTING PLANS Choose from popular presets including 16:8, 18:6, 20:4, 22:2, and OMAD — or create a custom fasting schedule that fits your lifestyle. STAY ON TRACK Daily reminders to start and end your fasts, milestone notifications, and streak nudges keep you accountable without the noise. WIDGETS Add ArcFast widgets to your Home Screen for quick at-a-glance fasting status without opening the app. FOOD SCAN Add quick calorie estimates to your fasting routine. Take a photo of your meal and ArcFast gives you a clear estimate of calories and food items, so you can understand what you eat between fasting windows. Estimates are for guidance only and are not medical or nutritional advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

InterFasting4 screens
ArcFast4 screens

Verdict

The call

The clearest difference is ads: ArcFast at none against InterFasting's shown. ArcFast also leads on rating (5.0 vs 4.8). InterFasting's advantage is update cadence (every 4 days vs every 6 weeks) and ratings volume (352 vs 1). On price, in-app purchases and monetization model 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. InterFasting sells 5 in-app purchases, starting at $3.99 per month and ArcFast sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ArcFast holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: InterFasting has 352 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

InterFasting ships an update every 4 days, ArcFast every 6 weeks. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 4 level
InterFasting versus ArcFast: the parameters behind the verdict, then further details
ParameterInterFastingArcFast
PriceFreeFree
Rating4.8 (352 ratings)5.0 (1 ratings) — better
Positive reviews88.6% of reviews—
Number of ratings352 — better1
Update frequencyEvery 4 days — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size99 MB13 MB
Age rating4+4+
DeveloperLivietKYRYL PEKAROV

Customer experience

InterFasting

All ratings348 ratings
Positive95.4%
Neutral1.4%
Negative3.2%
Written reviews70 reviews
Positive88.6%
Neutral2.9%
Negative8.6%

ArcFast

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

In-app purchases

5 purchases

InterFasting

Subscriptions4
  • Intermittent Fasting Monthly$3.991 Month
  • Intermittent Fasting Monthly$6.991 Month
  • Intermittent Fasting Annual$12.991 Year
Show 1 more
  • Intermittent Fasting Annual$34.991 Year
One-time1
  • Premium User$12.99
2 purchases

ArcFast

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Yearly$39.991 Year

Questions

Is InterFasting free?
InterFasting is free to download, with in-app purchases available.
Is ArcFast free?
ArcFast is free to download, with in-app purchases available.
Which has better reviews, InterFasting or ArcFast?
ArcFast is rated higher. InterFasting averages 4.8 out of 5 from 352 ratings, while ArcFast averages 5.0 from 1 ratings.
Do InterFasting or ArcFast have ads?
InterFasting shows ads; ArcFast does not.
Which is updated more often, InterFasting or ArcFast?
InterFasting ships an update every 4 days, and ArcFast every 6 weeks. Most recently, InterFasting was updated on October 25, 2026 and ArcFast on October 12, 2026.

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