Comparison

QoFast vs Waterfaster

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

Head to head
About

QoFast

Features
Read full description

Tired of dieting without results? Lose weight naturally with intermittent fasting instead of counting calories, and go further than any other app when you're ready. THE ONLY APP FOR BOTH INTERMITTENT AND EXTENDED FASTING QoFast is built for the full journey: daily 16:8 windows AND multi-day extended fasts with a guided Prep > Fast > Refeed structure. Most apps stop at 24 hours. QoFast safely takes you to 3, 5, even 7 days. SEE YOUR METABOLISM IN REAL TIME Watch your body move through 13 milestones as you fast: Fed > Fat Burning (4h) > Ketosis (12h) > Autophagy (24h) and beyond. Real-time metabolic-zone education tells you exactly what's happening inside you, with milestone notifications at every stage. FASTING PLANS FOR EVERY LEVEL - 16:8, 18:6, 20:4 and OMAD (one meal a day) - Extended 3, 5 and 7-day fasts with prep and refeed guidance - Fully custom schedules, including fasts over 24 hours (Pro) A SMART FASTING TIMER THAT LIVES WHERE YOU DO - Live Activity and Dynamic Island: your timer on the lock screen, always a glance away - Apple Watch app and Wear OS support - Apple Health and Health Connect sync COMPLETE FASTING TRACKER - Log water, mood and energy - Stats, heatmaps, streaks and notes - CSV export of your full history (Pro) FREE VERSION Track intermittent fasts, use the metabolic timer, log water and mood, and build streaks. Free, forever. QoFast PRO Unlock extended multi-day fasts, auto-cycling schedules, unlimited history and analytics, custom fasts over 24 hours, and CSV export. SUBSCRIPTION QoFast Pro is available as a weekly, monthly or yearly subscription, with a 7-day free trial on eligible plans. Current prices are shown in the app before you confirm your purchase. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. DISCLAIMER QoFast is for informational purposes only and is not medical advice. Consult your doctor before starting any fast, especially extended or multi-day fasts, or if you are pregnant, nursing, or have a medical condition. Support: info@qorinx.com Privacy Policy: https://qofast.com/privacy Terms of Use (EULA): https://qofast.com/terms

About

Waterfaster

Track intermittent and water fasts with live countdowns on your Lock Screen and widgets. Monitor your body's progress and connect with friends anonymously for support and challenges. Offers various fasting protocols and integrates with Apple Health.

Highlights
  • Live Lock Screen and widget countdowns
  • Anonymous social fasting with friends
  • Support for various fasting protocols
  • Apple Health integration
  • Hydration and electrolyte guidance
  • Progress tracking and insights
Features
Read full description

Water fasting and intermittent fasting, made clear — and no longer something you do alone. Start a fast with one tap and watch the live countdown on your Lock Screen, in the Dynamic Island and on your Home Screen widget. Follow what your body is doing hour by hour — fat burning, ketosis, cellular regeneration — based on published research. FAST TOGETHER — ANONYMOUS BY DESIGN • Live: see how many people are fasting with you right now • Your Circle: add friends with a simple code, follow their fast live, send boosts and friendly nudges • Groups & challenges: chase one goal together — from a 16:8 streak to a 7-day reset • No profiles, no photos, no feed of strangers. You appear under a generated water name unless you choose otherwise. YOU DECIDE WHO SEES YOU Share everything, hide from one specific friend, or go invisible completely. One tap, any time. NEVER LOSE YOUR PROGRESS Link Apple or Google and restore your history, stats and circle on any device. PICK YOUR PROTOCOL • Intermittent: 12:12, 14:10, 16:8, 18:6, 20:4 and OMAD • Water fasting: 24h, 36h, 48h, 72h, 4, 5 and 7 days • Flex: set or move your finish time while the fast is running ALSO INSIDE • Live Activity, Lock Screen and Home Screen widgets • Apple Health: steps, sleep, heart rate, weight and water • Hydration and electrolyte guidance during longer fasts • Streaks, trends and your full weight history • Personal insights and reminders you stay in control of Waterfaster is not medical advice. Talk to your doctor before longer fasts, and never fast on medication without medical guidance. — Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://waterfaster.app/terms Privacy Policy: https://waterfaster.app/privacy

Screenshots

QoFast4 screens
Waterfaster4 screens

Verdict

The call

The clearest difference is device support: QoFast at 3 against Waterfaster's 1. On price, update cadence, ads and in-app purchases 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. QoFast sells 3 in-app purchases, starting at $2.99 per 7 days and Waterfaster sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

QoFast ships an update every 6 days, Waterfaster every 11 days. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

Scorecard1 real difference · 8 level
QoFast versus Waterfaster: the parameters behind the verdict, then further details
ParameterQoFastWaterfaster
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 6 days — betterEvery 11 days
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size75 MB59 MB
Age rating17+17+
DeveloperQorinx OUAMIT Solutions

In-app purchases

3 purchases

QoFast

Subscriptions3
  • QoFast Pro$2.997 Days
  • QoFast Pro7 Days trial$9.991 Month
  • QoFast Pro7 Days trial$49.991 Year
3 purchases

Waterfaster

Subscriptions2
  • Waterfaster+$3.997 Days
  • Waterfaster+7 Days trial$44.991 Year
One-time1
  • Lifetime$89.99

Questions

Is QoFast free?
QoFast is free to download, with in-app purchases available.
Is Waterfaster free?
Waterfaster is free to download, with in-app purchases available.
Do QoFast or Waterfaster have ads?
Neither QoFast nor Waterfaster shows ads.
Which is updated more often, QoFast or Waterfaster?
QoFast ships an update every 6 days, and Waterfaster every 11 days. Most recently, QoFast was updated on October 24, 2026 and Waterfaster on October 23, 2026.

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