Fast Track Pro vs Simple Fast
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Fast Track Pro
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Fast Track Pro is an intermittent fasting timer and tracker that builds a plan around when you actually eat, then keeps it in view on your iPhone, iPad, Lock Screen, Apple Watch and widgets. A PLAN THAT FITS YOUR DAY Answer a few quick questions about your goal, your experience and your usual meal times. Fast Track Pro suggests a starting schedule (16:8, 18:6 or 20:4) and a weekly goal of 3, 5 or 7 fasting days. Switch to OMAD or a 36-hour fast any time, or build your own custom schedule. A TIMER YOU CAN SEE EVERYWHERE β’ One-tap start and end, with pause, resume, edit start time and extend goal β’ Live Activity on the Lock Screen and Dynamic Island β’ Home Screen, Lock Screen and StandBy widgets, with start, pause and end buttons β’ Apple Watch app and complications that stay in sync with your iPhone β’ Siri and Shortcuts: "Start fasting with Fast Track Pro", check your progress, pause, end, or log your weight LEARN WHAT EACH HOUR MEANS Follow your fast through educational stage estimates, from the fed window to longer fasting windows, with plain-language notes on what may be happening. Timings vary from person to person and are estimates, not measurements. STAY CONSISTENT β’ Streaks that follow calendar days, with rest days built into your weekly goal and streak freezes you earn as you go β’ A history calendar that shows every fast, rest day and freeze β’ Achievements that unlock as you reach real milestones β’ Optional reminders: a daily start reminder, stage and halfway alerts, and a heads-up when your fast is done β’ Hydration tracking with an optional water reminder SEE WHAT'S WORKING β’ Stats and weekly insights: fasts completed, hours fasted, average fast and how often you hit your goal β’ How each fast felt, and which plan and start time feel easiest for you β’ Weight tracking with a goal and trend chart, plus optional Apple Health sync for weight and body fat β’ A private progress photo journal β’ Shareable fast and weekly recap cards PRIVATE BY DESIGN No account. No ads. No tracking. No analytics. Your fasting history stays on your device, with optional backup to your own private iCloud (off by default). Export your data any time. PRICING Fast Track Pro requires a subscription or a one-time lifetime purchase to use. Eligible new subscribers get a 7-day free trial. β’ Monthly and yearly plans renew automatically β’ Lifetime is a one-time purchase with no renewal Payment is charged to your Apple ID when you confirm the purchase, or when the free trial ends. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. Manage or cancel in your Apple ID account settings. Any unused portion of a free trial ends when you buy a subscription. Terms of Use: https://fasttrack.duttlabs.app/terms.html Privacy Policy: https://fasttrack.duttlabs.app/privacy.html IMPORTANT Fast Track Pro is a wellness and education app, not a medical device, and it does not diagnose, treat or prevent any condition. Talk to a qualified healthcare professional before you start fasting, especially if you are pregnant or breastfeeding, under 18, have diabetes or another medical condition, take medication, or have a history of disordered eating.
Simple Fast
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Take control of your intermittent fasting journey with Simple Fast β Fasting Tracker. Whether you follow 16:8, 18:6, 20:4, or 12:12 fasting plans, Simple Fast gives you everything you need to stay on track β without complicated setup or unnecessary features. FASTING TIMER Start and stop your daily fasting session with one tap. A clear countdown shows exactly how much time remains, while the elapsed timer shows your progress. Know at a glance whether you are in a fasting window or an eating window. HISTORY Review every session at a glance. Each entry shows start time, end time, total duration, and completion status. Check your current streak and average fasting time β all in one place. Filter sessions by day to find exactly what you need. STATISTICS & INSIGHTS Visualize your fasting hours per day, completed days, and streaks with easy-to-read charts. Track your current streak and longest streak to stay motivated. Switch between chart types to explore your data the way you prefer. WEIGHT LOG Log your weight in kilograms or pounds. View a trend chart to see how your weight changes over time, and scroll through your full weight history. Quick-add today's weight right from your profile. BMI TRACKER Set your height and let Simple Fast calculate your body mass index automatically from your logged weight. A visual semi-circular gauge shows exactly where your BMI falls across four ranges β Underweight, Normal, Overweight, and Obese β with a color-coded legend and category label. Track how your BMI shifts over time as you log new weights. PERSONALIZED SETTINGS Choose your preferred fasting plan and adjust it anytime. Enter your height in centimeters or feet and inches so your BMI stays accurate. Toggle reminders so you never miss a fasting window. Switch between metric and imperial units for weight and height display. SMART COMPLETION LOGIC At the end of each session, Simple Fast asks whether you completed your fast. The app automatically compares your actual fasting time against your plan and marks the session accordingly β keeping your streaks accurate and honest. REMINDERS Enable push notifications to receive timely reminders when your fasting window begins or ends. Stay consistent without having to watch the clock. HOME SCREEN WIDGET Add the Simple Fast widget to your home screen for instant visibility into your fasting progress. See at a glance whether you are fasting, how much time remains, and your current streak β all without opening the app. Tap the widget to jump straight into the timer. PRIVACY FIRST Simple Fast does not collect personal health data. It tracks fasting time only. All data stays on your device. Review the privacy policy and disclaimer at any time from Settings. WHY SIMPLE FAST? β’ No account required β start tracking immediately β’ Clean, distraction-free interface β’ One session per day β simple and focused β’ BMI tracking with visual gauge built in β’ Weight trend charts to monitor progress β’ Home screen widget for at-a-glance fasting status β’ Works completely offline β’ Free to use Download Simple Fast β Fasting Tracker today and build the fasting habit that sticks. Disclaimer: This app does not provide medical advice. Please consult a qualified healthcare professional before starting any fasting routine. The app creators are not responsible for any health issues that may occur. Users should seek proper medical guidance before practicing fasting.
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Verdict
The clearest difference is in-app purchases: Simple Fast at none against Fast Track Pro's 3. Simple Fast also leads on update cadence (every 6 weeks vs every 4 months) and iOS requirement (15.0 vs 17.0). Fast Track Pro's advantage is ads (none vs shown). On price and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Fast Track Pro sells 3 in-app purchases, starting at $4.99 per month. Simple Fast asks for nothing beyond the download.
Fast Track Pro ships an update every 4 months, Simple Fast every 6 weeks. Both last shipped on October 31, 2026.
| Parameter | Fast Track Pro | Simple Fast |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 6 weeks β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 16 MB | 57 MB |
| Age rating | 4+ | 17+ |
| Developer | Shankar Dutt | Duc Dang Ngoc |
In-app purchases
Fast Track Pro
- Fast Track Pro Monthly7 Days trial$4.991 Month
- Fast Track Pro Yearly7 Days trial$24.991 Year
- Fast Track Pro Lifetime$49.99
Simple Fast
No in-app purchases
Questions
Is Fast Track Pro free?
Is Simple Fast free?
Do Fast Track Pro or Simple Fast have ads?
Which is updated more often, Fast Track Pro or Simple Fast?
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