BMI vs Fast Track Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BMI
Easily calculate your Body Mass Index (BMI) and track your weight over time. Monitor your progress towards your health goals with this straightforward tool.
- BMI calculation
- Weight tracking
- Progress monitoring
- Health goal support
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Track your BMI, monitor weight progress, and stay within your healthy weight range. BMI Tracker & Calculator helps you calculate Body Mass Index, save measurements, and visualize progress through a modern dashboard designed for everyday health tracking.
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 • One-tap start and end, with pause, resume, edit start time and extend goal • Live Activity on the Lock Screen and Dynamic Island • Home Screen, Lock Screen and StandBy widgets, with start, pause and end buttons • Apple Watch app and complications that stay in sync with your iPhone • 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 • Streaks that follow calendar days, with rest days built into your weekly goal and streak freezes you earn as you go • A history calendar that shows every fast, rest day and freeze • Achievements that unlock as you reach real milestones • Optional reminders: a daily start reminder, stage and halfway alerts, and a heads-up when your fast is done • Hydration tracking with an optional water reminder SEE WHAT'S WORKING • Stats and weekly insights: fasts completed, hours fasted, average fast and how often you hit your goal • How each fast felt, and which plan and start time feel easiest for you • Weight tracking with a goal and trend chart, plus optional Apple Health sync for weight and body fat • A private progress photo journal • 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. • Monthly and yearly plans renew automatically • 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.
Screenshots
Verdict
The clearest difference is ads: Fast Track Pro at none against BMI's shown. On price, update cadence, in-app purchases 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
Both are free to download. BMI sells 1 one-off in-app purchase and Fast Track Pro sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
BMI ships an update every 6 months, Fast Track Pro every 4 months. The most recent releases landed on November 3, 2026 and November 13, 2026 respectively.
| Parameter | BMI | Fast Track Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (56 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 56 — better | — |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 16 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | An Banh | Shankar Dutt |
In-app purchases
BMI
- Upgrade Pro Version$1.99
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









