Comparison

FastTrack Fasting Timer vs Fastology

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

Head to head
About

FastTrack Fasting Timer

Features
Read full description

FastTrack is the cleanest, most intentional way to track your intermittent fast. No clutter. No noise. Just a precise countdown that keeps you focused — glanceable from your Dynamic Island and Lock Screen without ever opening the app. Live Activities put your progress exactly where you need it. FastTrack uses iOS Live Activities to display a real-time countdown on the Dynamic Island and Lock Screen. Your fast is always visible, always accurate — even when your phone is sitting face-down on a desk. Every protocol, handled. Whether you fast 16:8, 18:6, 20:4, or push through an extended 36 or 72-hour window, FastTrack supports them all — plus fully custom durations. Set it once and let the app do the rest. Your history, beautifully organized. A calendar view gives you a complete record of every fast at a glance. Tap any day to see the full breakdown. Weekly charts, monthly trends, personal bests, and consistency tracking reveal what's actually working. Available with Pro. Streaks that hold you accountable. FastTrack tracks your fasting streak, sends a heads-up when it's at risk, and celebrates every milestone you hit. Consistency compounds — this is how you measure it. Synced with Apple Health. Fasting windows are recorded automatically, so your data lives where your other health metrics do. Smart notifications remind you when to start, alert you as the finish line approaches, and confirm every completed fast. No ads. No tracking. No fluff. FastTrack does exactly what it says and nothing it shouldn't. All your data is yours — export everything to CSV anytime. Pro unlocks advanced insights, trends, and export tools for people who want the full picture. Start your fast. FastTrack handles the rest. Terms of Use: https://fasttrackfasting.app/terms Privacy Policy: https://fasttrackfasting.app/privacy

About

Fastology

This app provides structured tracking for intermittent fasting, going beyond simple timers. It helps users follow specific fasting schedules with clear phase progress, build consistency through streaks, and manage a flexible weekly plan. Focuses on discipline and reducing guesswork for a clearer fasting experience.

Highlights
  • Track various fast types (16:8, OMAD, extended)
  • Live phase-by-phase progress tracking
  • Build streaks from completed fasts
  • Flexible weekly fasting schedule
  • Review fasting history
  • Ask fasting questions with reviewed answers
  • Siri and Shortcuts integration
Features
Read full description

Fastology is a fasting tracker for people who want more than a timer. Fasting works when it is structured. Fastology helps you track 16:8, 18:6, OMAD, and extended fasts with clear phase progress, streaks that reflect completed fasts, and a weekly schedule that fits real life. Most fasting apps count hours. Fastology helps you follow through. WHY FASTOLOGY Structured, not reactive Follow a clear fasting rhythm instead of making it up as you go. See where you are Track each phase of the fast with live progress, so you always know where you stand and what comes next. Consistency over intensity Build streaks from completed fasts and focus on repeatability, not random extremes. Flexible weekly schedule Set your fasting rhythm for the week, then adjust specific days when life changes. Clear, focused experience No clutter. No noise. Just the tools that matter when you want to fast with more discipline and less guesswork. WHAT YOU CAN DO • Track 16:8, 18:6, OMAD, and extended fasts • Follow live phase-by-phase progress • Build streaks from completed fasts • Set a weekly schedule and adjust specific days • Review your fasting history over time • Ask fasting questions with reviewed answers and linked sources • Start a fast, check your phase, or search Fastology from Siri, Spotlight, Shortcuts, and Ask • On supported devices, use Apple Intelligence to explore your fasting history Fastology is built for people who want to fast with more clarity, more structure, and more follow-through.

Screenshots

FastTrack Fasting Timer4 screens
Fastology4 screens

Verdict

The call

The clearest difference is in-app purchases: Fastology at none against FastTrack Fasting Timer's 2. On price, ads, device support and iOS requirement 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. FastTrack Fasting Timer sells 2 in-app purchases, starting at $1.99 per month. Fastology asks for nothing beyond the download.

Scorecard1 real difference · 9 level
FastTrack Fasting Timer versus Fastology: the parameters behind the verdict, then further details
ParameterFastTrack Fasting TimerFastology
PriceFreeFree
Rating—4.9 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS18.017.0 — better
Further details — not scored
Size2 MB40 MB
Age rating4+4+
DeveloperChris KarlinSmallScale Works LLC

In-app purchases

2 purchases

FastTrack Fasting Timer

Subscriptions2
  • Pro Monthly$1.991 Month
  • Pro Yearly$14.991 Year
None

Fastology

No in-app purchases

Questions

Is FastTrack Fasting Timer free?
FastTrack Fasting Timer is free to download, with in-app purchases available.
Is Fastology free?
Fastology is free to download, with no in-app purchases.
Do FastTrack Fasting Timer or Fastology have ads?
Neither FastTrack Fasting Timer nor Fastology shows ads.

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