Comparison

Sick Watch vs BMI Tracker

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

Head to head
About

Sick Watch

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Know you're getting sick before you feel it. Sick Watch monitors your overnight health signals โ€“ heart rate, HRV, temperature, and breathing โ€“ to spot the patterns that appear 1-3 days before illness symptoms. Based on research from Stanford and UCSF involving 63,000 participants, multi-signal detection can identify illness brewing with 82% accuracy, nearly 3 days before you'd normally notice. How it works: - Wear your Apple Watch to sleep - If you have existing sleep data, predictions start immediately - New watch owners get early predictions after 7 nights, full confidence at 14 - Get alerted when signals suggest your body is fighting something - Take action early โ€“ rest up, clear your schedule, boost your defences Features: - Four-signal monitoring (temperature, HRV, heart rate, respiratory rate) - Personal baseline (not population averages) - Automatic alerts when something's brewing - No iPhone required โ€“ runs entirely on Apple Watch - Privacy-first โ€“ all data stays on your device Requirements: - Apple Watch Series 4 or later - watchOS 10 or later - Series 8+ recommended for temperature monitoring One-time purchase. No subscription. No ads. NOTE: Sick Watch is not a medical device and does not provide medical diagnoses. It is intended for general wellness purposes only. Always consult a doctor before making any medical decisions.

About

BMI Tracker

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BMI Tracker โ€“ Simple Body Mass Index Calculator BMI Tracker helps you quickly calculate your Body Mass Index and monitor your progress over time. Whether you are managing your weight, tracking fitness goals, or simply curious about your BMI, this app provides a clean and easy way to calculate and store your results. Key Features โ€ข Fast BMI calculation Enter your height and weight to instantly calculate your BMI. โ€ข Metric and Imperial units Supports centimeters/kilograms and feet/inches/pounds. โ€ข Clear health categories Understand your BMI classification: Underweight, Normal, Overweight, or Obese. โ€ข Visual BMI indicator See where your BMI falls on the health scale. โ€ข Save your history Store previous measurements and track your BMI over time. โ€ข Trend chart View how your BMI changes across multiple entries. โ€ข Private by design All data is stored locally on your device. Nothing is uploaded or shared. Why use BMI Tracker? BMI Tracker focuses on simplicity and privacy. No accounts, no ads, and no complicated setup โ€” just a quick and reliable way to calculate and track your BMI. Important Notice BMI is a general indicator of body composition and may not reflect individual health conditions. This app is intended for informational purposes only and should not replace medical advice.

Verdict

The call

The clearest difference is device support: Sick Watch at 3 against BMI Tracker's โ€”. Sick Watch also leads on iOS requirement (13.0 vs 15.0). On price and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences ยท 4 level
Sick Watch versus BMI Tracker: the parameters behind the verdict, then further details
ParameterSick WatchBMI Tracker
PriceFreeFree
Update frequencyEvery 4 daysโ€”
AdsNoโ€”
In-app purchasesNoNo
DevicesiPhone, iPod, Apple Watch โ€” betterโ€”
Requires iOS13.0 โ€” better15.0
Further details โ€” not scored
Size1 MB5 MB
Age rating4+17+
DeveloperEdward ScotcherMatteo Pezzulla

In-app purchases

None

Sick Watch

No in-app purchases

None

BMI Tracker

No in-app purchases

Questions

Is Sick Watch free?
Sick Watch is free to download, with no in-app purchases.
Is BMI Tracker free?
BMI Tracker is free to download, with no in-app purchases.

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