Comparison

Sensor Bio vs FastTrack Fasting Timer

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

Head to head
About

Sensor Bio

This platform uses biosensors to remotely monitor key health metrics like heart rate, HRV, and sleep stages. It provides personalized insights and is designed for general fitness and wellness purposes.

Highlights
  • Clinical-grade biometrics
  • Validated heart rate and HRV tracking
  • Detailed sleep stage analysis
  • Remote monitoring capabilities
  • Personalized health insights
Features
Read full description

Sensor Bio is a biosensor-based remote monitoring platform. FEATURES • Validated clinical-grade biometrics include heart rate, heart rate variability (HRV), respiratory rate, and more. • Critically acclaimed sleep tracking. Sleep stages (awake, light, deep, REM), biometrics (HR, HRV, resp. rate), arm movement, and more! • Remote monitoring functionality to help organizations to monitor biometrics and user adherence effortlessly. • Personalized Insights tailored for each individual. • and more! CONNECT WITH US Online - https://sensorbio.com Read more about our terms of use here: https://sensorbio.com/terms-conditions/ Read more about our privacy policy here: https://sensorbio.com/privacy-center/ Disclaimers: Sensor Bio wearables are not medical devices and are meant only for general fitness/wellness purposes. Statements made in the Sensor Bio app are not medical advice. Consult with a doctor before making any medical decisions using data collected using the Sensor Bio platform.

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

Screenshots

Sensor Bio4 screens
FastTrack Fasting Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Sensor Bio 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. Sensor Bio asks for nothing beyond the download.

Scorecard1 real difference · 8 level
Sensor Bio versus FastTrack Fasting Timer: the parameters behind the verdict, then further details
ParameterSensor BioFastTrack Fasting Timer
PriceFreeFree
Rating5.0 (9 ratings) — better—
Number of ratings9 — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size178 MB2 MB
Age rating4+4+
DeveloperSensr Biotech, LLCChris Karlin

In-app purchases

None

Sensor Bio

No in-app purchases

2 purchases

FastTrack Fasting Timer

Subscriptions2
  • Pro Monthly$1.991 Month
  • Pro Yearly$14.991 Year

Questions

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

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