Comparison

iF vs Intermittent Fasting Timer IF

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

Head to head
About

iF

Read full description

iF - InterFast makes intermittent fasting simple and helps you adopt a healthy lifestyle.  Intermittent fasting brings several health benefits and has helped thousands of people lose weight and be healthier. With iF - InterFast, you can easily add your meals, drinks and activities to monitor your daily calorie count. Performance is saved and can be viewed in the stats. Monitor and record your weight at regular intervals and track your progress. iF -InterFast also calculates your TDEE which serves as a guide in monitoring your calorie intake and can read your active calorie burnt from Health App.

About

Intermittent Fasting Timer IF

This app helps you track intermittent fasting by visualizing metabolic states, managing fasting and eating windows, and providing smart notifications. It offers features like live lock screen updates and HealthKit integration to support your wellness journey.

Highlights
  • Metabolic zone visualization
  • Live Activity and Dynamic Island integration
  • Multiple fasting type options
  • Intelligent timer and scheduling
  • Fasting history and statistics
  • HealthKit integration
  • Achievement system
Features
Read full description

Transform Your Health with Smart Intermittent Fasting Fasting revolutionizes your health journey with intelligent tracking, personalized insights, and seamless automation. FASTING ZONES - TRACK YOUR METABOLIC STATE Visualize your body's metabolic phases as you fast: • Fed State (0-4h) - Digestion and nutrient absorption • Catabolic (4-8h) - Blood sugar normalizes, fat mobilization begins • Fat Burning (8-12h) - Body switches to burning stored fat • Ketosis (12-18h) - Ketone production increases for energy • Deep Ketosis (18-24h) - Enhanced fat burning and mental clarity • Autophagy (24h+) - Cellular cleanup and renewal LIVE ACTIVITIES AND DYNAMIC ISLAND • Live Activity on your lock screen shows elapsed time • Dynamic Island displays your fasting progress at a glance • See your current metabolic zone without opening the app SMART FASTING SYSTEM • Multiple Fasting Types - 16:8, 18:6, 20:4, OMAD, 24h, 36h, and custom • Intelligent Timer - Tracks fasting and eating windows precisely • Calendar Integration - Smart scheduling based on your events • Achievement System - Unlock milestones and build lasting habits POWERFUL TRACKING • Real-time fasting timer with visual progress rings • Detailed fasting history and statistics • Weekly and monthly analytics dashboards • Streak tracking and weight trends SEAMLESS AUTOMATION • Smart Notifications for fasting start/end times • iCloud Sync across all your devices • Widget Support for quick status checks • Background Tracking continues when app is closed PERSONALIZED EXPERIENCE • Interactive Tutorial to learn how the app works • Custom Fasting Plans that fit your lifestyle • Health Integration with HealthKit FREE FEATURES: • Up to 3 active fasting sessions • Basic fasting types (16:8, 18:6) • Timer and notifications • iCloud sync PREMIUM FEATURES (Additional Purchase): • Unlimited sessions and history • Advanced fasting types • Advanced analytics • Weight tracking and trends • Data export Perfect for beginners and experienced fasters alike. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iF4 screens
Intermittent Fasting Timer IF4 screens

Verdict

The call

iF and Intermittent Fasting Timer IF are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. iF sells 12 one-off in-app purchases and Intermittent Fasting Timer IF sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

iF ships an update every 2 months, Intermittent Fasting Timer IF every 3 months. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.

ScorecardNo meaningful differences
iF versus Intermittent Fasting Timer IF: the parameters behind the verdict, then further details
ParameteriFIntermittent Fasting Timer IF
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad — betteriPhone
Requires iOS18.018.0
Further details — not scored
Size45 MB18 MB
Age rating4+4+
DeveloperHans BabyloneJeff Cedilla

In-app purchases

12 purchases

iF

One-time12
  • Mediterranean Chicken$0.99
  • Fish Fillet in Tomatoes Garlic$0.99
  • Grilled Shrimp with Salsa$0.99
Show 9 more
  • Salmon with Mango Salsa$0.99
  • Guacamole On Toast With Salad$0.99
  • Peppered Beef With Asparagus$0.99
  • Cauliflower Pizza$0.99
  • Chocolate Cupcake$0.99
  • Keto Pancake$0.99
  • Intermediate level$2.99
  • Experienced Level$3.99
  • Personalized & Statistics$4.99
3 purchases

Intermittent Fasting Timer IF

Subscriptions2
  • Monthly$2.991 Month
  • Yearly$6.991 Year
One-time1
  • Lifetime$9.99

Questions

Is iF free?
iF is free to download, with in-app purchases available.
Is Intermittent Fasting Timer IF free?
Intermittent Fasting Timer IF is free to download, with in-app purchases available.
Do iF or Intermittent Fasting Timer IF have ads?
Neither iF nor Intermittent Fasting Timer IF shows ads.
Which is updated more often, iF or Intermittent Fasting Timer IF?
iF ships an update every 2 months, and Intermittent Fasting Timer IF every 3 months. Most recently, iF was updated on September 22, 2026 and Intermittent Fasting Timer IF on September 25, 2026.

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