FastiMate vs Just Fast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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)
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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
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.
- 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
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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
Verdict
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
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.
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.
Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on September 20, 2026.
| Parameter | FastiMate | Just Fast |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (7 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.2 | 14.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 47 MB |
| Age rating | 4+ | 17+ |
| Developer | lutfu dogan akbas | Adrian Cabala |
Customer experience
FastiMate
Just Fast
In-app purchases
FastiMate
- Weekly Subscription$4.997 Days
- 1 Month Subscription$9.991 Month
- 1 Year Subscription$59.991 Year
Just Fast
No in-app purchases









