My Fasting Timer vs JustFast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
My Fasting Timer
Easily start and track your intermittent fasting journey with a simple tap. This app offers popular fasting protocols and custom window options, helping you build consistency with streak tracking and progress visualization.
- One-tap fast start/stop
- Pre-set and custom fasting windows
- Eating window countdown
- Daily streak tracking
- Fasting history log
- 100% private data
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Start your fast with one tap. The timer counts up, shows your eating window, and tracks your streak — so you can focus on your day, not the clock. Choose from popular protocols: 16:8, 18:6, 20:4, or OMAD. Or create your own custom fasting window. Build consistency with daily streak tracking and weekly progress dots. KEY FEATURES - One-tap fast start and stop - Built-in protocols: 16:8, 18:6, 20:4, OMAD - Custom fasting window support - Eating window countdown and notifications - Daily streak tracking with weekly view - Fasting history log - 100% private — no account, no cloud, all data on your device Disclaimer: This app is for personal tracking purposes only. Intermittent fasting is not suitable for everyone. Consult your physician before starting any fasting regimen, especially if you have diabetes, are pregnant, or have a history of eating disorders.
JustFast
This app offers a straightforward intermittent fasting timer. It focuses on tracking your fast with a clear, calm interface, providing insights into metabolic stages without gamification or pressure. It prioritizes privacy with on-device data storage and no accounts.
- One-tap start and stop
- Live timer with accurate timekeeping
- Metabolic milestone tracking
- Plain-language explanations of milestones
- Adjustable start/stop times
- Ongoing notification for duration
- Simple history of past fasts
- 18 languages and dark design
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Fasting is a beautifully simple intermittent-fasting timer that does one thing well: it tracks your fast. No goals to hit. No streaks to protect. No accounts, no ads, no clutter. Just tap once to begin, and a calm live timer counts your fast while a glowing ring fills toward the next stage your body moves through. WHY IT'S DIFFERENT Most fasting apps pile on dashboards, reminders, and pressure. This one strips fasting back to its essence — a clear timer you can glance at and put away. It's designed to feel quiet and focused, not gamified. WHAT YOU GET • One-tap start and stop, with a big, satisfying button • A live timer that keeps perfect time across restarts, time-zone changes, and daylight saving • Metabolic milestones — the ring fills toward the next stage (blood sugar settling, glycogen burning, fat burning, ketosis, autophagy, and more) • Tap any milestone for an honest, plain-language explanation of what's happening in your body • Forgot to start the timer? Just tap the ring to fix your start time. Forgot to stop? End your fast at the right time after the fact. • An ongoing notification shows your current duration at a glance • A simple history of past fasts — swipe to delete • 18 languages and a clean dark design HONEST BY DESIGN The milestone descriptions are written plainly and honestly. Where the science is still early or based mostly on animal research, we say so. This app is a timer and an educational companion — not medical advice. PRIVATE BY DEFAULT Your data stays on your device. There are no accounts, no sign-ups, no tracking, and nothing is uploaded. Fasting works for 16:8, OMAD, alternate-day, extended fasts, or any schedule you like — because it never forces a schedule on you. Note: Fasting is not a medical device and does not provide medical advice. Talk to a healthcare professional before starting any fasting regimen, especially if you are pregnant, nursing, taking medication, or have a medical condition.
Screenshots
Verdict
The clearest difference is ads: JustFast at none against My Fasting Timer's shown. JustFast also leads on monetization model (free vs ad-supported). My Fasting Timer's advantage is iOS requirement (15.1 vs 18.0). On price, rating, ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for My Fasting Timer against 5.0 for JustFast. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
My Fasting Timer ships an update every 8 days, JustFast fortnightly. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.
| Parameter | My Fasting Timer | JustFast |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 8 days — better | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 26 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Blas Prieto | Vitalii Vyrodov |
Customer experience
My Fasting Timer
JustFast
In-app purchases
My Fasting Timer
No in-app purchases
JustFast
No in-app purchases
Questions
Is My Fasting Timer free?
Is JustFast free?
Which has better reviews, My Fasting Timer or JustFast?
Do My Fasting Timer or JustFast have ads?
Which is updated more often, My Fasting Timer or JustFast?
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