Comparison

Intermittent Fasting vs Fasting Clock

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

Head to head
About

Intermittent Fasting

Easily track your fasting journey with a simple timer and customizable plans. Monitor progress with stats, streaks, and a calendar to support weight loss and consistent intermittent fasting.

Highlights
  • Simple fasting timer
  • Popular fasting plans (16:8, OMAD, custom)
  • Stats, streaks, and progress tracking
  • Fasting calendar and history
  • Smart reminders
Features
Read full description

Intermittent Fasting – Tracker is a premium fasting companion, tracker and timer for 16:8, 18:6, 23:1, OMAD, and custom fasting windows. Track your progress with reminders, stats, streaks and progress calendar designed to support weight loss and consistent intermittent fasting. Please note: This app requires a subscription to access all features, including the timer, fasting plans and stats. Unlock your full potential with our comprehensive fasting toolkit KEY FEATURES Simple Fasting Timer Start your fast in one tap and track every fasting window with a clear timer built for intermittent fasting. Stay focused with an easy interface that shows your progress in real time. Popular Fasting Plans Choose from common protocols like 16:8, 18:6, 20:4, 23:1, and OMAD, or create your own custom fasting schedule. Stats, Streaks, And Progress See total fasting hours, longest fast, streaks, and other progress stats that help you stay consistent over time. Smart Reminders Set reminders for your fasting window so it is easier to stay on schedule every day. WHY PEOPLE USE THIS APP - track intermittent fasting with a simple timer - follow 16:8, OMAD, and custom fasting plans - stay consistent with reminders and streaks - review progress with stats and calendar history - support weight loss with a clearer fasting routine PERFECT FOR - intermittent fasting beginners - 16:8 fasting plans - OMAD fasting routines - weight loss goals - fasting reminders and progress tracking This app is for tracking and informational use only. Always consult a healthcare professional before starting a fasting routine. Privacy Policy: https://sites.google.com/view/fasting-tracking-tool/home Terms of Use: https://sites.google.com/view/janogroupllc/terms

About

Fasting Clock

Features
Read full description

Start a fasting timer, close the app, and trust the number when you come back. FastTrkr tracks your intermittent fasting window — 16:8, 14:10, 12:12, 18:6, 20:4 or OMAD — shows elapsed time against your target, then counts down the eating window that follows. Most fasting apps want your email, your weight, your meal photos and a coaching plan. FastTrkr is the opposite: a precise fasting clock with an honest log. The timer is anchored to your iPhone's continuous system clock, so elapsed time stays correct through reboots, timezone changes and clock adjustments. And it records the hours that actually ran — end at 15.2 hours and the log says 15.2, never a rounded-up target. WHAT YOU GET • Open the app 14 hours into a 16:8 and "14:22:07 of 16h" is already on the ring — the clock kept counting while the app was closed • End the fast and an eating-window countdown takes its place, so you know dinner has to land inside the next 7 hours 40 minutes • One local reminder fires the minute your window completes — no fast quietly stretching to 19 hours because you forgot it was running • A day streak, windows-met total and lifetime fast count sit under the ring every time you open the app • Tapped End by accident at hour 3? Edit the start and end times and the session is corrected, with a note field for how it felt • A 14-day bar chart shows your recorded fasting hours at a glance PERFECT FOR • 16:8 beginners who want one number, not a lifestyle program • OMAD and 20:4 practitioners who need a timer that takes long windows seriously • Anyone who quit a fasting app because it demanded an account and a weigh-in first • Shift workers whose windows move — custom hour targets when the standard presets don't fit WHY NOT JUST USE THE CLOCK APP? A plain timer forgets everything when it ends, loses your fast when the phone reboots, and knows nothing about eating windows. FastTrkr survives a reboot mid-fast, logs every session to an editable history, keeps your streak, and tells you when the eating window closes — things a stopwatch will never do. PRIVATE BY DEFAULT No account, no analytics, no ads, no server. Every session is stored on your iPhone and the app works fully offline. Nothing you record ever leaves the device. FastTrkr is a timer, not medical advice. Fasting is not suitable for everyone — read the in-app safety guidance and talk to a clinician if you are unsure. FULL ACCESS FastTrkr Pro unlocks the extended protocols — 18:6, 20:4, OMAD and custom targets up to 23 hours — plus the 14-day hours chart. Choose a weekly or yearly subscription, or a one-time lifetime purchase. Start your first 16:8 tonight — by breakfast the ring will tell you exactly where you stand. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia

Screenshots

Intermittent Fasting3 screens
Fasting Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting Clock at none against Intermittent Fasting's 2. Fasting Clock also leads on ads (none vs shown). Intermittent Fasting's advantage is update cadence (every 2 months vs every 4 months) and device support (3 vs 1). On price 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. Intermittent Fasting sells 2 in-app purchases, starting at $3.99 per month. Fasting Clock asks for nothing beyond the download.

UpkeepUpdate frequency

Intermittent Fasting ships an update every 2 months, Fasting Clock every 4 months. The most recent releases landed on September 20, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 4 level
Intermittent Fasting versus Fasting Clock: the parameters behind the verdict, then further details
ParameterIntermittent FastingFasting Clock
PriceFreeFree
Rating5.0 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyEvery 2 months — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size35 MB3 MB
Age rating4+4+
DeveloperJanoGroup LLCLEAN ASIA CO., LTD

In-app purchases

2 purchases

Intermittent Fasting

Subscriptions2
  • Monthly - Premium$3.991 Month
  • Annual - Premium7 Days trial$24.991 Year
None

Fasting Clock

No in-app purchases

Questions

Is Intermittent Fasting free?
Intermittent Fasting is free to download, with in-app purchases available.
Is Fasting Clock free?
Fasting Clock is free to download, with no in-app purchases.
Do Intermittent Fasting or Fasting Clock have ads?
Intermittent Fasting shows ads; Fasting Clock does not.
Which is updated more often, Intermittent Fasting or Fasting Clock?
Intermittent Fasting ships an update every 2 months, and Fasting Clock every 4 months. Most recently, Intermittent Fasting was updated on September 20, 2026 and Fasting Clock on October 11, 2026.

Other comparisons