Comparison

Fasting Tracker vs FastWindow

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

Head to head
About

Fasting Tracker

This app helps you build and maintain an intermittent fasting routine. It offers a simple timer, progress tracking, and insights into your body's responses during fasting periods. Designed for beginners and experienced users alike, it provides gentle encouragement and clear guidance.

Highlights
  • Intermittent fasting timer
  • Customizable fasting schedules
  • Real-time progress tracking
  • Body insights during fasting
  • Guidance on fasting-friendly drinks
  • Gentle and supportive approach
Features
Read full description

Timo - your simple, friendly fasting tracker Build a fasting routine that actually feels good. Timo is a simple, supportive intermittent fasting tracker designed to help you stay consistent - without pressure, guilt, or “gym bro” energy. Whether you’re just starting out or refining your routine, Timo helps you track your fast, understand what’s happening in your body, and stay motivated day by day. Track your fast with ease - Start, stop, and adjust your fasting timer in seconds. Choose from popular schedules like 14:10, 16:8, 18:6, or create your own. See progress that keeps you going - Watch your fasting time build in real-time, unlock milestones, and stay motivated with clear, encouraging feedback. Understand what’s happening in your body - Learn when fat burning begins, when ketosis kicks in, and how your body adapts during your fast. Know what you can (and can’t) have - Simple guidance on drinks during fasting - no confusion, no overcomplication. A friendly approach that sticks - Timo is designed to support you, not pressure you. Gentle encouragement, clean design, and a calm experience that helps you stay consistent. Perfect for: • intermittent fasting beginners • experienced fasters refining their routine • anyone looking for a simple fasting timer or fasting tracker • building sustainable habits for weight loss and health

About

FastWindow

Features
Read full description

FastWindow does one thing. It shows you how long you've been fasting and when you can eat. Every major fasting app has become a wellness platform — coaching subscriptions, quizzes, recipe feeds, and paywall friction. FastWindow strips all of that away. ONE-TAP FASTING TIMER Open the app. Tap start. Done. No quiz about your goals. No onboarding survey. No account creation. Just a clean fasting timer that works. You see two things: • How long you've been fasting (elapsed time) • When you can eat (remaining time) That's it. That's the app. FASTING PRESETS BUILT IN Choose your fasting window in one tap: • 16:8 (16 hours fasting, 8 hours eating) • 18:6 (18 hours fasting, 6 hours eating) • 20:4 (20 hours fasting, 4 hours eating) • OMAD (One Meal A Day) • Custom durations (Pro feature) No coaching. No meal plans. No calorie tracking. Just fasting. FEATURES THAT MATTER • One-tap fasting timer • Live elapsed and remaining time • Fasting presets (16:8, 18:6, 20:4, OMAD) • 7-day fast history at a glance • Calendar heatmap to see patterns • Backdate your start time if you forget to start the timer • Local notifications when your fast ends • No account required. Ever. • No subscription. Ever. FASTWINDOW PRO — One Time Purchase Upgrade once to unlock: • Unlimited fast history (beyond 7 days) • Custom fasting durations (set any hours:minutes) • Weight log with trend visualization • Apple Health export (weight, fasting data) • Advanced stats (average fast length, streak tracking) Pay once. £4.99. Yours forever. No renewal, no monthly fee, no subscription. WHY FASTWINDOW EXISTS The fasting app category has a problem. Every major app pushes you toward: • Subscription upsells (coaching, premium insights, meal plans) • Onboarding quizzes (goals, weight, activity level, dietary preferences) • Wellness bloat (recipes, articles, community challenges, step tracking) FastWindow rejects all of that. If you need a fasting coach, use Zero. If you want recipes and meal plans, use Fastic. If you want community challenges, use BodyFast. But if you just want to know how long you've been fasting — and that's it — FastWindow is for you. PERFECT FOR • People practicing intermittent fasting (16:8, 18:6, OMAD, etc.) • Users frustrated by fasting app subscriptions • Anyone who wants a timer, not a wellness platform • People who value simplicity over features • Users tired of onboarding quizzes and paywalls WHO FASTWINDOW IS NOT FOR FastWindow does not provide: • Coaching or fasting advice • Meal plans or recipes • Calorie tracking or macros • Community features or challenges • Water intake or step tracking • Body measurements beyond weight If you need those features, consider Zero, Fastic, or BodyFast. FastWindow is intentionally minimal. PRIVACY & SIMPLICITY • No account creation required • No email, no password, no profile • All data stored locally on your device • No cloud sync (intentional — keeps it simple) • No third-party analytics or tracking • Offline-first design NO SUBSCRIPTION MEANS NO SUBSCRIPTION Other fasting apps say "free" but push monthly subscriptions for basic features like custom fasting durations or history beyond 7 days. FastWindow is different: one optional upgrade, one price, lifetime access. No coaching upsells, no premium tiers, no renewal fatigue. Free version: 7-day history, preset durations (16:8, 18:6, 20:4, OMAD), basic timer Pro version: £2.99 once, everything unlocked, forever MEDICAL DISCLAIMER FastWindow is not medical advice. Consult a healthcare professional before beginning any fasting program, especially if you have a medical condition or take medications. SUPPORT & CONTACT Questions? Feedback? Contact us at karl@projectsnaplabs.com FastWindow is independently developed with your focus and simplicity as the top priorities. Download FastWindow today and track your fasts without the bloat, subscriptions, or friction.

Screenshots

Fasting Tracker4 screens
FastWindow4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting Tracker at none against FastWindow's 1. Fasting Tracker also leads on iOS requirement (13.0 vs 15.1). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FastWindow sells 1 one-off in-app purchase. Fasting Tracker asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Fasting Tracker versus FastWindow: the parameters behind the verdict, then further details
ParameterFasting TrackerFastWindow
PriceFreeFree
Rating4.8 (16 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings16 — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size25 MB37 MB
Age rating4+4+
DeveloperHelen SeymourPROJECTSNAPLABS LTD

In-app purchases

None

Fasting Tracker

No in-app purchases

1 purchases

FastWindow

One-time1
  • FastWindow Pro$4.99

Questions

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

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