Comparison

HydraFast vs DeepFast

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

Head to head
About

HydraFast

Features
Read full description

Find your rhythm of energy, clarity, and weight loss. HydraFast is the premier Intermittent Fasting and Water Tracker designed for those who value simplicity and privacy. Align with your natural wellness flow using our elegant fasting timer and hydration log. Whether you are starting your first 16:8 fast, mastering OMAD, or following a Keto diet, HydraFast provides the insights you need to succeed. Beautifully minimal. Incredibly motivating. No accounts needed, no ads, no friction. ● Fast with Clarity Track your intermittent fasting with precision. Choose from trusted protocols like 16:8, 18:6, 20:4, OMAD, unlimited, or go custom with Flow Mode for full flexibility. Stay in sync with real-time fasting window tracking, dynamic rings, and haptic cues that deepen your sense of progress. It’s the perfect schedule for your cleanse or detox. ● Hydrate with Ease Maintain your hydration levels effortlessly. Quickly log your water intake using preset drink sizes or customize your own daily water goals. Our hydration tracker ensures you stay fueled throughout your fasting period. ● Designed for the Mind HydraFast isn’t just a timer—it’s a wellness experience. Every screen is crafted to feel calm, clean, and alive. Adaptive themes flow naturally with light and dark mode for day-to-night harmony. Perfect for building a healthy habit that lasts. ◉ Free HydraFast Features ◉  Everything you need to begin your wellness habit—beautifully crafted, completely private, and instantly usable. • Start with the 16:8 “Balanced Start” fasting rhythm • Rest Day support - purposeful recovery, fully reflected in your chart • Multi-day fasting support for extended weight loss goals • Record water intake in a snap using hydration quick-add presets • Visualize the last 7 days of your journey in weekly, monthly, and yearly overviews • Journey insights: longest fasting session, averages, and hydration records • Premium experience: luxurious, minimal UI/UX; adaptive Dark & Light themes • Backup & restore your data and achievements for peace of mind ◉ HydraFast Pro - The Complete Experience ◉ Unlock the full power of advanced fasting, hydration, and long-term diet insights. • Unlock all rhythms: 18:6, 20:4, OMAD, and more • The Unlimited Mode - flexible fasting without fixed hours • Flow Mode - choose your perfect fasting : eating ratio • Add & edit hydration quick-add presets (bottles, mugs, glasses) • Advanced journey insights: Lifetime streaks, fasting consistency, and goal-met analytics • View your full journey history with no limits HydraFast Pro transforms your rhythm into a long-term, meaningful wellness story. One-time lifetime unlock or affordable subscription (Solo & Family options). ------------------ Health Disclaimer HydraFast is a wellness support app, not a medical tool. It does not provide medical advice or diagnosis. Always consult your doctor before beginning or adjusting any fasting or hydration routine. Subscription & Terms Upgrade to HydraFast Pro for a continuous, unlimited experience. Your subscription will be charged to your Apple ID upon confirmation. It will renew automatically unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to renewal. Manage or cancel your subscription anytime in your App Store settings. By using HydraFast & HydraFast Pro, you agree to our Terms of Service http://hydrafast.danielvw.com/Terms-of-Service/ and Privacy Policy https://hydrafast.danielvw.com/Privacy-Policy/.

About

DeepFast

This app provides a dedicated timer for extended fasting periods, focusing on tracking metabolic body phases and personal fasting streaks. It offers detailed insights into your fasting journey without calorie counting or social features.

Highlights
  • Animated fasting timer with progress ring
  • Presets for OMAD, Warrior, and extended fasts
  • Metabolic body phase tracking
  • Streak calendar and history
  • Weight tracking with Apple Health sync
  • Smart notifications for phases and milestones
Features
Read full description

DeepFast is the fasting timer built for serious fasters. No calorie counting. No meal plans. No social feeds. Just your fast, your streaks, and your results. FASTING TIMER • Beautiful animated timer ring with real-time progress • Presets for OMAD (23:1), Warrior (20:4), 36h, 48h, 72h, and custom fasts up to 7 days • Timer persists through app close and device restart • Backdate your start time if you forgot to tap start BODY PHASE TRACKING • See exactly where you are metabolically: Fed State → Early Fasting → Fat Burning → Ketosis → Deep Ketosis → Autophagy → Deep Autophagy → Extended • Science-backed descriptions at every phase • Color-coded progress bar and ring STREAK CALENDAR • Monthly calendar view with daily completion status • Current streak, longest streak, total fasts, and total hours • Tap any day to see detailed fast history • Monthly summary with average duration and longest fast WEIGHT TRACKING • Log weight manually or sync from Apple Health • Trend chart with 7-day moving average • Track total change and weekly progress • Supports kg and lbs SMART NOTIFICATIONS • Get notified when you enter each body phase • Milestone alerts at 50% of your goal • Completion celebrations • Optional daily streak reminders PRIVACY FIRST • All data stored locally on your device • No cloud servers, no analytics, no tracking • HealthKit data never leaves your device • No account required to use the app BUILT FOR OMAD & EXTENDED FASTING Most fasting apps are designed for 16:8 beginners. DeepFast is built for the serious faster — OMAD practitioners, Warrior Diet followers, and anyone doing 36-hour to 7-day extended fasts. We track the phases that matter to you: ketosis, deep ketosis, autophagy, and beyond. SUBSCRIPTION DeepFast offers Monthly ($7.99/month) and Annual ($49.99/year) subscriptions. Payment is charged to your Apple ID. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the billing period. Manage subscriptions in Settings > Apple ID > Subscriptions. Privacy Policy: https://deepfast.co/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

HydraFast4 screens
DeepFast3 screens

Verdict

The call

The clearest difference is update cadence: DeepFast at every 3 weeks against HydraFast's every 6 weeks. On price, ads, in-app purchases 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. HydraFast sells 6 in-app purchases, starting at $2.99 per month and DeepFast sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HydraFast ships an update every 6 weeks, DeepFast every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
HydraFast versus DeepFast: the parameters behind the verdict, then further details
ParameterHydraFastDeepFast
PriceFreeFree
Rating—1.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size17 MB10 MB
Age rating4+4+
DeveloperDaniel WidjajaThomas Panas

In-app purchases

6 purchases

HydraFast

Subscriptions4
  • HydraFast Pro • Monthly7 Days trial$2.991 Month
  • HydraFast Pro Family • Monthly7 Days trial$6.991 Month
  • HydraFast Pro • Yearly14 Days trial$24.991 Year
Show 1 more
  • HydraFast Pro Family • Yearly14 Days trial$59.991 Year
One-time2
  • HydraFast Pro • Lifetime$59.99
  • HydraFast Pro Family • Lifetime$149.99
2 purchases

DeepFast

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Annual$29.991 Year

Questions

Is HydraFast free?
HydraFast is free to download, with in-app purchases available.
Is DeepFast free?
DeepFast is free to download, with in-app purchases available.
Do HydraFast or DeepFast have ads?
Neither HydraFast nor DeepFast shows ads.
Which is updated more often, HydraFast or DeepFast?
HydraFast ships an update every 6 weeks, and DeepFast every 3 weeks. Most recently, HydraFast was updated on October 30, 2026 and DeepFast on October 31, 2026.

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