Comparison

FastiMate vs Just Fast

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

Head to head
About

FastiMate

Build a sustainable fasting routine with personalized plans and reliable tracking. This app offers hydration and habit tracking, with advanced features for consistency and insights. Designed for real life, it focuses on gentle approaches for long-term results.

Highlights
  • Fasting Timer with reliable tracking
  • Fasting History & basic stats
  • Hydration tracking with custom goals
  • Habit tracking for daily consistency
  • Adaptive weekly plans
  • Streak protection
  • Data export (CSV)
Features
Read full description

FastiMate — Your Tailored Fasting Journey FastiMate helps you build a sustainable fasting routine—without guilt, complexity, or endless dieting. Perfect if you’re new to fasting, getting back on track, or prefer a gentler approach (especially for women 40+). What you can do (Free) • Fasting Timer with reliable tracking • Fasting History & basic stats (weekly/monthly/yearly) • Hydration tracking with custom goals • Habit tracking to build daily consistency • Clean dashboard showing your daily progress Pro (for faster, easier consistency) • Adaptive weekly plans that fit your schedule • Fallback/Recovery days when life happens • Weekly insights that show what’s working for YOU • Streak protection (Grace / Freeze) to avoid “starting over” • Advanced reminders & automation (smart nudges, quick actions) • Live Activities for effortless Lock Screen tracking • Data export (CSV) to keep your history portable Designed for real life FastiMate focuses on consistency over extremes—so you can stick with it long enough to see results. Note: If you have a medical condition (including diabetes) or take medication, please consult a healthcare professional before changing your fasting routine. Fastimate plans: Weekly: $4.99 Monthly: $9.99 Annual: $59.99 Payments and Renewal: Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase No cancellation of the current subscription is allowed during the active period. Terms of use: https://www.dakbas.com/fastimate/terms-of-use.html Privacy: https://www.dakbas.com/fastimate/privacy-policy.html

About

Just Fast

This app tracks both your fasting periods and your eating windows, offering a unique dual-countdown feature. It visualizes metabolic phases like fat burning and ketosis, supports various fasting methods, and provides insights into your progress. It's designed to be user-friendly and privacy-conscious, working entirely offline.

Highlights
  • Eating window countdown
  • Fasting phases visualization
  • Support for multiple fasting methods
  • Streak tracking with grace periods
  • Pattern insights
  • Weight and BMI tracking
  • Smart notifications
  • 100% offline functionality
Features
Read full description

Just Fast is the intermittent fasting timer that tracks both your fast and your eating window — a combination no other fasting app offers. Whether you're new to 16:8 or pushing into 20:4, OMAD, or custom schedules, Just Fast gives you a clear, distraction-free timer alongside the insights to understand what your body is doing and build habits that stick. EATING WINDOW COUNTDOWN — ONLY IN JUST FAST Most fasting apps tell you when your fast ends. Just Fast also tells you when your eating window closes. Know exactly how much time you have left to eat, so you stop overrunning your window by accident. KEY FEATURES • Eating Window Countdown — track when your eating window closes, not just when your fast ends • Fasting Phases — see fat burning, ketosis, and autophagy stages visualized in real time • All Major Fasting Methods — 16:8, 18:6, 20:4, OMAD, 14:10, 12:12, 24h, and custom durations • Streak Tracking with Grace Periods — maintain your momentum even on tough days • Pattern Insights — review your fasting history and discover your most consistent windows • Weight Tracking with BMI — log weight entries and track progress over time • Smart Notifications — reminders that support your schedule, not disrupt it • Beginner-Friendly Onboarding — choose your goal, fasting expertise, and preferred schedule in minutes • 100% Offline — no account, no signup, no cloud required • 15 Languages — English, German, French, Spanish, Polish, Portuguese, Italian, Japanese, Korean, Arabic, Russian, Swedish, Finnish, Norwegian, Turkish UNDERSTAND YOUR FAST, NOT JUST YOUR TIMER Just Fast visualizes the metabolic phases of fasting as they happen: fat burning begins around hour 12, ketosis deepens past hour 18, autophagy activates beyond hour 24. You do not need a biology degree — the app shows you where you are and what your body is doing. FREE AND LIGHTWEIGHT All core features are free. No subscription. No paywall. Just Fast is also one of the lightest full-featured fasting apps available — under 50MB download, compared to 200MB+ for most competitors. Fast to download, fast to start. Note: The app is free with light banner ads on secondary screens (history, settings). The main fasting timer screen is completely ad-free. PERFECT FOR • Beginners starting their first 16:8 protocol • Intermediate fasters exploring 18:6, 20:4, or OMAD • Anyone who wants fasting phases explained without complexity • People managing multiple fasting schedules across 15 languages • Privacy-conscious users who prefer no-account apps Download Just Fast and start your first fast today — no signup required. --- Privacy Policy: https://justfast.app/privacy Support: support@justfast.app

Screenshots

FastiMate4 screens
Just Fast4 screens

Verdict

The call

The clearest difference is in-app purchases: Just Fast at none against FastiMate's 3. Just Fast also leads on ratings volume (7 vs 1) and device support (3 vs 1). FastiMate's advantage is ads (none vs shown). On price, rating, review sentiment and update cadence 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. FastiMate sells 3 in-app purchases, starting at $4.99 per 7 days. Just Fast asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for FastiMate against 5.0 for Just Fast. That said, the two scores are not equally well evidenced: Just Fast has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on September 20, 2026.

Scorecard6 real differences · 4 level
FastiMate versus Just Fast: the parameters behind the verdict, then further details
ParameterFastiMateJust Fast
PriceFreeFree
Rating5.0 (1 ratings)5.0 (7 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings17 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.214.0 — better
Further details — not scored
Size31 MB47 MB
Age rating4+17+
Developerlutfu dogan akbasAdrian Cabala

Customer experience

FastiMate

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Just Fast

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

FastiMate

Subscriptions3
  • Weekly Subscription$4.997 Days
  • 1 Month Subscription$9.991 Month
  • 1 Year Subscription$59.991 Year
None

Just Fast

No in-app purchases

Questions

Is FastiMate free?
FastiMate is free to download, with in-app purchases available.
Is Just Fast free?
Just Fast is free to download, with no in-app purchases.
Which has better reviews, FastiMate or Just Fast?
FastiMate and Just Fast are both rated 5.0 out of 5 on the App Store, from 1 and 7 ratings respectively.
Do FastiMate or Just Fast have ads?
Just Fast shows ads; FastiMate does not.
Which is updated more often, FastiMate or Just Fast?
FastiMate ships an update every 3 weeks, and Just Fast every 3 weeks. Most recently, FastiMate was updated on September 20, 2026 and Just Fast on September 20, 2026.

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