Comparison

InFuel vs Intermittent Fasting

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

Head to head
About

InFuel

Features
Read full description

Fuel from within. Transform your body, sharpen your mind, and unlock your full potential—one fast at a time. InFuel is your personal AI-powered fasting coach designed to guide you through 24, 48, 72, and 100-hour fasts with science-backed insights, real-time body updates, and motivational support every step of the way. Whether new to fasting or leveling up your current routine, InFuel keeps you informed, inspired, and in control. - - - - - - - - f e a t u r e s Custom Fast Timer -- Start, pause, or complete your fast anytime. Track your progress hour-by-hour with a clean, minimalist timer designed to keep you focused. Real-Time Body Insights -- Know exactly what’s happening in your body as you fast—ketosis, autophagy, fat-burning, and more. InFuel delivers detailed updates based on your current hour of fasting. AI-Powered Fasting Coach -- Ask questions, get encouragement, or dive into the science behind fasting with your personal AI coach, available 24/7. Smart Reminders -- Get hydration alerts, motivational quotes, and helpful tips—timed around your fasting schedule and sleep preferences. Learn View -- Explore swipeable cards packed with knowledge about fasting safety, the stages of fat-burning, autophagy, and refeeding guidance. Sleep-Aware Notifications -- InFuel adjusts to your sleep schedule so you can rest without unnecessary alerts. Refeed Guidance -- Finish strong. InFuel provides safe, smart recommendations for breaking your fast to avoid bloating and discomfort. Fasting isn’t about going without—it’s about going within. InFuel is built to help you find clarity, discipline, and strength through intentional fasting. Download InFuel today and take the first step toward mastering your fast—one hour at a time.

About

Intermittent Fasting

Features
Read full description

Fasting works best when you can see it working. MindFast is the intermittent fasting app built native for iOS: beautiful timer, smart insights, and an on-device AI coach that respects your privacy. WHY MINDFAST IS DIFFERENT - Private by design. Your data stays on your device. No account required, no tracking, no cloud. - On-device AI Coach. Powered by Apple's Foundation Models, your coach works offline and learns nothing about you. - Built native for iOS 18 and iOS 26. Live Activity, Lock Screen widgets, and Home Screen widgets included. FASTING SCHEDULES THAT FIT YOUR LIFE - 16:8, 18:6, 20:4, OMAD, and custom durations - 5:2 weekly schedule - Alternate-day fasting - Ad-hoc fasts for when life happens TRACK WHAT MATTERS - Live fasting timer with stage tracking — see when fat-burning starts and when autophagy kicks in - Weight, energy, sleep, and overall health goals with progress charts - Streaks, monthly medals, and an XP system to keep momentum - Fasting journal to log how you feel during each fast SMART INSIGHTS - Daily, weekly, and monthly summaries of your progress - AI-generated reports — entirely on your device, never sent to a server - Pattern recognition to surface which schedules work best for you APPLE HEALTH READY Sync weight, sleep, and active energy with Apple Health. Read-only by default — you stay in control of what's shared. TRY YOUR FIRST FAST FREE Start fasting in seconds — your first fast unlocks every premium feature with no card and no account required. After your first fast, MindFast Premium is available monthly or annually. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

InFuel4 screens
Intermittent Fasting4 screens

Verdict

The call

The clearest difference is in-app purchases: InFuel at none against Intermittent Fasting's 3. Intermittent Fasting's advantage is update cadence (every 2 months vs every 10 months). On price, ads, device support and iOS requirement 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 sells 3 in-app purchases, starting at $4.99 per month. InFuel asks for nothing beyond the download.

UpkeepUpdate frequency

InFuel ships an update every 10 months, Intermittent Fasting every 2 months. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

Scorecard2 real differences · 4 level
InFuel versus Intermittent Fasting: the parameters behind the verdict, then further details
ParameterInFuelIntermittent Fasting
PriceFreeFree
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad — better
Requires iOS18.018
Further details — not scored
Size2 MB8 MB
Age rating4+4+
DeveloperFishybear LLCAXIOM SLATE PTE. LTD.

In-app purchases

None

InFuel

No in-app purchases

3 purchases

Intermittent Fasting

Subscriptions2
  • MindFast Premium Monthly7 Days trial$4.991 Month
  • MindFast Premium Annual7 Days trial$39.991 Year
One-time1
  • MindFast Premium Lifetime$69.99

Questions

Is InFuel free?
InFuel is free to download, with no in-app purchases.
Is Intermittent Fasting free?
Intermittent Fasting is free to download, with in-app purchases available.
Do InFuel or Intermittent Fasting have ads?
Neither InFuel nor Intermittent Fasting shows ads.
Which is updated more often, InFuel or Intermittent Fasting?
InFuel ships an update every 10 months, and Intermittent Fasting every 2 months. Most recently, InFuel was updated on September 17, 2026 and Intermittent Fasting on September 15, 2026.

Other comparisons