Comparison

InFuel vs H2 flow water 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

H2 flow water fasting

This app guides users through water fasting with hydration tracking and mindful prompts. It offers science-based tools to support metabolic renewal and help users achieve fasting goals, from short to multi-day protocols.

Highlights
  • Hydration tracking
  • Mindful guidance
  • Science-based tools
  • Fasting preparation
  • Milestone celebration
  • Metabolic renewal support
Read full description

Unlock the full potential of water fasting with H₂flow — designed with insights from experienced fasting practitioners to help you prepare, stay mindful, and celebrate every milestone. Whether you’re completing your first 24-hour fast or optimizing multi-day protocols, H₂flow supports your journey with hydration tracking, mindful guidance, and science-based tools for metabolic renewal. Important Disclaimer: H₂flow is intended for informational and wellness purposes only. It does not provide medical advice and is not a substitute for professional medical consultation, diagnosis, or treatment. Always seek the advice of your physician or another qualified healthcare provider before starting any fasting program, making dietary changes, or making decisions related to your health. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

InFuel4 screens
H2 flow water fasting4 screens

Verdict

The call

The clearest difference is in-app purchases: InFuel at none against H2 flow water fasting's 2. H2 flow water fasting's advantage is update cadence (monthly vs every 10 months) and iOS requirement (16.4 vs 18.0). On price, ads and device support 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. H2 flow water fasting sells 2 in-app purchases, starting at $2.99 per month. InFuel asks for nothing beyond the download.

UpkeepUpdate frequency

InFuel ships an update every 10 months, H2 flow water fasting monthly. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
InFuel versus H2 flow water fasting: the parameters behind the verdict, then further details
ParameterInFuelH2 flow water fasting
PriceFreeFree
Rating—3.4 (5 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 10 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhoneiPhone, iPad — better
Requires iOS18.016.4 — better
Further details — not scored
Size2 MB57 MB
Age rating4+17+
DeveloperFishybear LLCMartijn Nelissen

In-app purchases

None

InFuel

No in-app purchases

2 purchases

H2 flow water fasting

Subscriptions2
  • H2Flow Pro Monthly$2.991 Month
  • H2Flow Pro Yearly$24.991 Year

Questions

Is InFuel free?
InFuel is free to download, with no in-app purchases.
Is H2 flow water fasting free?
H2 flow water fasting is free to download, with in-app purchases available.
Do InFuel or H2 flow water fasting have ads?
Neither InFuel nor H2 flow water fasting shows ads.
Which is updated more often, InFuel or H2 flow water fasting?
InFuel ships an update every 10 months, and H2 flow water fasting monthly. Most recently, InFuel was updated on October 25, 2026 and H2 flow water fasting on November 5, 2026.

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