Comparison

Fast Slow vs Finger Tap Test

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

Head to head
About

Fast Slow

Understand your body's metabolic changes during fasting with a visual timeline. This free app guides you through different fasting zones, from digestion to deep ketosis, and offers customizable schedules and smart notifications. It provides stats, streaks, and widgets for easy progress tracking.

Highlights
  • Fasting timer with visual timeline
  • 6 customizable fasting schedules
  • 5 distinct fasting zones explained
  • Smart notifications for fasting windows
  • Stats, streaks, and trends tracking
  • Home and Lock Screen widgets
  • Siri Shortcuts integration
Features
Read full description

See what happens inside your body as you fast. Fast Slow walks you through 5 fasting zones, from digestion through fat burning to deep ketosis, so you understand what every hour of your fast is doing. 100% free. Every feature. No ads. No paywalls. No trackers. Free forever. WHAT MAKES FAST SLOW DIFFERENT Most fasting apps just count down a timer. Fast Slow shows you what's actually happening in your body at each stage: - Anabolic (0-4h): Digesting and storing nutrients - Catabolic (4-8h): Tapping into energy reserves - Fat Burning (8-12h): The metabolic switch - Ketosis (12-16h): Ketones and cellular cleanup - Deep Ketosis (16h+): Deep cellular renewal Tap any zone to learn more about the science behind it. 100% FREE. EVERY FEATURE INCLUDED. No premium tier. No trial that expires. No paywall gates. Every feature in Fast Slow is yours from day one: - All 6 fasting schedules - All stats, streaks, and trends - All widgets (Home Screen and Lock Screen) - All notifications - Siri Shortcuts - iCloud sync - Data export Everything free. No catches. FEATURES Fasting Timer One tap to start. One tap to stop. A visual timeline shows where you are, what zone you're in, and what comes next. 6 Fasting Schedules 12:12 for beginners, 14:10, 16:8 (the most popular), 18:6, 20:4, and OMAD (one meal a day) for experienced fasters. Visual Timeline Color-coded timeline of your fasting and eating windows. Plan meals, training, and recovery at a glance. Smart Notifications 7 notification types: goal reached, halfway there, one hour left, eating window alerts, and a custom last meal reminder. Nudges, not nags. Stats & Streaks Total fasts, average duration, personal records, weekly trends, and a monthly fasting calendar. Small wins add up. Widgets Home Screen and Lock Screen widgets with progress rings, timelines, and live timers. Check your fast without opening the app. Siri Shortcuts "Hey Siri, start my fast." Start, stop, and check your fasting status hands-free. AI-Powered Greetings On supported devices, Apple Intelligence creates personalized messages based on your fasting progress, streak, and time of day. iCloud Sync Your fasting data syncs automatically across all your devices. Data You Own Export your fasting history as JSON. Delete everything with one tap. Your data, your choice. DESIGNED FOR REAL LIFE Pick a schedule, adjust as needed, and let Fast Slow handle the timing. New to fasting or already have a routine, it works either way. Structure when you want it, out of the way when you don't. Built by one developer who fasts every day. No corporate agenda. No growth hacking. A well-made tool that respects your time and your data. RESPONSIBLE APPROACH Intermittent fasting can support weight management, energy, and focus, but results vary. Fast Slow provides tools and information, not medical advice. If you have health conditions, are pregnant, or have a history of eating disorders, please talk to a healthcare professional before starting.

About

Finger Tap Test

Read full description

How fast can you tap? Finger Tap Test is a free app that turns your phone into a simple finger-tapping-speed test. Tap as fast as you can for ten seconds and get your taps per ten seconds, then watch how your speed trends over time. Inspired by the classic finger-tapping test used for almost a century to study fine motor speed, reimagined as a quick, friendly daily check-in. WHAT YOU GET • A clear headline score — your taps in ten seconds • "How are you feeling today?" — once you've checked in a few times, see how today compares to your own usual, not to anyone else • A trend chart of your check-ins over time, by hand • A built-in Learn section explaining the test, the science, and how to read your results PRIVATE BY DESIGN Your tapping data stays on your device. There's no account and nothing to sign up for. JUST FOR FUN AND WELLNESS Finger Tap Test is for general wellness and curiosity. It is not a medical device and does not diagnose, treat, or assess any health condition. Your tapping speed naturally varies from day to day with sleep, energy, focus, and caffeine — think of it as a gentle daily check-in, not a test to pass. Free to download — no subscription, no account.

Screenshots

Fast Slow4 screens
Finger Tap Test4 screens

Verdict

The call

The clearest difference is in-app purchases: Finger Tap Test at none against Fast Slow's 4. Finger Tap Test also leads on update cadence (every 4 days vs fortnightly). Fast Slow's advantage is ads (none vs shown). On price, 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. Fast Slow sells 4 in-app purchases, starting at $1.99 per 7 days. Finger Tap Test asks for nothing beyond the download.

UpkeepUpdate frequency

Fast Slow ships an update fortnightly, Finger Tap Test every 4 days. The most recent releases landed on September 13, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
Fast Slow versus Finger Tap Test: the parameters behind the verdict, then further details
ParameterFast SlowFinger Tap Test
PriceFreeFree
Rating5.0 (22 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings22 — better—
Update frequencyFortnightlyEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS18.017.0 — better
Further details — not scored
Size19 MB9 MB
Age rating4+4+
DeveloperZan CerneCow Cow Technologies LLC

In-app purchases

4 purchases

Fast Slow

Subscriptions2
  • Legacy$1.997 Days
  • Legacy - Yearly3 Days trial$12.991 Year
One-time2
  • Buy Me a Coffee$2.99
  • You're Amazing$9.99
None

Finger Tap Test

No in-app purchases

Questions

Is Fast Slow free?
Fast Slow is free to download, with in-app purchases available.
Is Finger Tap Test free?
Finger Tap Test is free to download, with no in-app purchases.
Do Fast Slow or Finger Tap Test have ads?
Finger Tap Test shows ads; Fast Slow does not.
Which is updated more often, Fast Slow or Finger Tap Test?
Fast Slow ships an update fortnightly, and Finger Tap Test every 4 days. Most recently, Fast Slow was updated on September 13, 2026 and Finger Tap Test on September 14, 2026.

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