Comparison

Flint vs Water Fasting

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

Head to head
About

Flint

This app helps you track intermittent fasting with a visual timer and personalized insights. It guides you through fasting phases, logs your daily habits, and offers tools to manage hunger. Unlock advanced analytics and recommendations with a Pro subscription.

Highlights
  • Smart fasting timer with custom protocols
  • Track metabolic milestones (ketosis, autophagy)
  • Comprehensive diary for mood, energy, and hunger
  • AI-powered personalized insights
  • Streaks and achievements for motivation
  • Hunger management coping tools
Features
Read full description

Track your intermittent fasting with a beautiful circular timer that makes every hour count. SMART FASTING TIMER Start a fast with one tap. Choose from 5 proven protocols — 16:8, 18:6, 20:4, OMAD, or create your own custom schedule. Watch your progress in real time with a fire-orange ring that fills as you get closer to your goal. METABOLIC MILESTONES Follow your body through 6 science-backed fasting phases. From ketosis to autophagy, see exactly what is happening inside as you fast — with each milestone celebrated when you hit it. COMPREHENSIVE DIARY Log mood, energy, hunger, sleep, cravings, meals, hydration, and symptoms throughout each session. Spot patterns and understand what helps you complete your fasts. INTELLIGENT INSIGHTS An AI-powered engine analyzes your data to find correlations between your habits and fasting success. Get personalized recommendations based on your unique patterns. STREAKS & ACHIEVEMENTS Build momentum with daily streaks and unlock achievements as you progress. A 7-day week bar shows your recent history at a glance. COPING TOOLS When the hunger hits, guided 4-7-8 breathing exercises, evidence-based hunger management tips, and activity suggestions help you push through. PRIVACY FIRST All data stays on your device. No accounts required. No data sold. Your fasting journey is yours alone. FLINT PRO Unlock advanced analytics and personalized insights with a Flint Pro subscription. Pro members get deeper trend analysis across multiple fasts, expanded milestone breakdowns, and tailored recommendations based on your unique patterns. • Includes a 3-day free trial for new subscribers • Auto-renews yearly at the same price unless cancelled at least 24 hours before the end of the current period • Manage or cancel anytime in your App Store account settings Download Flint for free today and take control of your fasting journey. Whether you're starting your first 16:8 fast, building a healthier routine, or just curious about intermittent fasting, Flint is the ultimate intermittent fasting companion. Start, track, and transform your way to a healthier you – one fast at a time! --- Terms of use: https://www.almastreetventures.com/terms Privacy policy: https://www.almastreetventures.com/privacy

About

Water Fasting

Track your fasting journey with a visually engaging water orb timer. Understand your body's stages, log hydration, and gain personalized wellness insights. Offers science-backed information and a premium minimalist design.

Highlights
  • Living water orb timer with gyroscope physics
  • Six science-backed fasting stages
  • Hydration and wellness logging
  • Personalized wellness insights
  • Premium minimalist design
  • Data export
Features
Read full description

Watch a living water orb fill as you fast. Real gyroscope physics make it slosh when you tilt your phone. Track six science backed fasting stages, log hydration, and understand what your body is doing during every hour of your fast. A Living Water Orb Timer A stunning glass orb fills with water as you fast. Real time gyroscope physics make the water slosh when you tilt your phone. Rising bubbles and fluid motion make your fast feel tangible and alive. Six Science Backed Fasting Stages From Fed State to Deep Ketosis, understand what happens in your body at every phase. All content is peer reviewed and source cited. No blogs, no hype, just science. Smart Wellness Tracking Log your water intake, check in on your energy, mood, and focus. Get personalized wellness insights that connect your hydration with how you feel. The app recommends when to drink water, rest, or adjust based on your check in scores. Beautiful Premium Design Deep ocean inspired dark theme with Apple style glass UI elements. Every screen is crafted with premium minimalism, clean typography, fluid animations, and thoughtful interactions. Free Features Basic fasting timer with water orb Water logging with 250 ml quick add Fed State information 16 to 8 and 24 hour fasting routines Pro Features Seven day free trial for all Pro features, then 59.99 USD per year Monthly option available at 9.99 USD per month All six fasting stages explained Full water tracking with custom goals Wellness check in and smart insights All routines including 36 hour, 48 hour, and 72 hour fasts Adjust start and end time Pause and resume fasting Peer reviewed educational library Safe refeeding protocols Smart notifications and reminders Export your data Your Privacy Matters Your fasting data, water logs, mood scores, and journal entries stay on your device. We never transmit health data. Anonymous opt out usage analytics, limited to event names only and without health values, help us improve the app. Sign in with Apple is optional. Local first by design. Medical Disclaimer This app is for general wellness and educational purposes only. Always consult a healthcare professional before fasting. Start your mindful fasting journey today.

Screenshots

Flint4 screens
Water Fasting3 screens

Verdict

The call

The clearest difference is ads: Water Fasting at none against Flint's shown. Flint's advantage is update cadence (every 6 days vs every 3 weeks) and ratings volume (14 vs 2). On price, rating, 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. Flint sells 2 in-app purchases, starting at $29.99 per year and Water Fasting sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Flint against 5.0 for Water Fasting. That said, the two scores are not equally well evidenced: Flint has 14 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Flint ships an update every 6 days, Water Fasting every 3 weeks. The most recent releases landed on September 21, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
Flint versus Water Fasting: the parameters behind the verdict, then further details
ParameterFlintWater Fasting
PriceFreeFree
Rating4.9 (14 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings14 — better2
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size33 MB19 MB
Age rating17+12+
DeveloperAlma Street VenturesSUKRU DEMIR

In-app purchases

2 purchases

Flint

Subscriptions2
  • Flint Pro3 Days trial$29.991 Year
  • Flint Plus3 Days trial$39.991 Year
2 purchases

Water Fasting

Subscriptions2
  • Water Fasting Pro$9.991 Month
  • Water Fasting Pro1 Year trial$59.991 Year

Questions

Is Flint free?
Flint is free to download, with in-app purchases available.
Is Water Fasting free?
Water Fasting is free to download, with in-app purchases available.
Which has better reviews, Flint or Water Fasting?
Water Fasting is rated higher. Flint averages 4.9 out of 5 from 14 ratings, while Water Fasting averages 5.0 from 2 ratings.
Do Flint or Water Fasting have ads?
Flint shows ads; Water Fasting does not.
Which is updated more often, Flint or Water Fasting?
Flint ships an update every 6 days, and Water Fasting every 3 weeks. Most recently, Flint was updated on September 21, 2026 and Water Fasting on September 30, 2026.

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