Fasting Timer vs JustFast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasting Timer
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The private fasting timer that respects your data. FastClear is the intermittent fasting timer for people who value their privacy. No account required, no cloud, no tracking — your fasting data stays on your device, always. WHAT YOU GET - Track every fast with precision: 16:8, 18:6, 20:4, OMAD, 5:2, or your own custom schedule. - See exactly what's happening in your body: progress through fed, fat burning, ketosis, and autophagy phases. - Stay motivated with streaks, milestones, and home screen widgets that keep your current fast one glance away. - Syncs with Apple Health (optional) — your fasting sessions are saved locally and can be written to Apple Health if you enable it. WHY FASTCLEAR IS DIFFERENT Unlike other fasting apps, FastClear doesn't ask for your email, your weight, or your eating habits. You don't even need to create an account. The app works 100% offline. The only data we ever see is none — because nothing leaves your iPhone. 100% PRIVATE BY DESIGN Your data is yours alone. FastClear is designed to be the most private fasting tracker on the App Store. Privacy label: Data Not Linked to You. You can verify it on the FastClear App Store page before downloading. PRICING FastClear is free to download with all essential features included. Unlock advanced protocols, full fasting history, detailed stats, and home screen widgets with FastClear Pro: $2.08/month (billed annually at $24.99) or $3.99/month. Includes a 7-day free trial. LEGAL Terms of Use (EULA): https://zealous-chokeberry-859.notion.site/FastClear-Terms-of-Use-34565a7a621c8008bfe3f9a45390ba03 Privacy Policy: https://zealous-chokeberry-859.notion.site/FastClear-Privacy-Policy-34565a7a621c8041892cda69b42eb329 Download FastClear today and start your fasting journey — privately.
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 in-app purchases: JustFast at none against Fasting Timer's 2. On price, update cadence, ads 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
Both are free to download. Fasting Timer sells 2 in-app purchases, starting at $3.99 per month. JustFast asks for nothing beyond the download.
Fasting Timer ships an update every 11 days, JustFast fortnightly. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.
| Parameter | Fasting Timer | JustFast |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 11 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 7 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicolas Dojcilovic | Vitalii Vyrodov |
In-app purchases
Fasting Timer
- FastClear Pro Monthly7 Days trial$3.991 Month
- FastClear Pro Yearly7 Days trial$24.991 Year
JustFast
No in-app purchases
Questions
Is Fasting Timer free?
Is JustFast free?
Do Fasting Timer or JustFast have ads?
Which is updated more often, Fasting Timer or JustFast?
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