Comparison

BMI Calculator and Tracker vs Open Me First

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

Head to head
About

BMI Calculator and Tracker

Calculate and track your Body Mass Index (BMI) using age, gender, height, and weight. This tool helps you understand your weight category and monitor progress towards your health goals.

Highlights
  • BMI calculation by age, gender, height, and weight
  • BMI classification display
  • Healthy weight estimation
  • Detailed progress tracking history
  • Metric and US unit support
  • Offline usability
Features
Read full description

Know your numbers and take charge of your health with BMI Calculator and Tracker — the simple, accurate way to calculate your Body Mass Index and follow your progress as you work toward a healthier weight. Designed for men and women, adults, teens and children, it uses your age and gender to make every result as precise as possible. Your Body Mass Index is a trusted measure of body fat based on your height and weight, and it's one of the quickest ways to check whether you are in a healthy range. Getting started takes seconds: enter your gender, age, height and weight in metric or US units, tap calculate, and instantly see where you stand. WHY YOU'LL LOVE BMI CALCULATOR AND TRACKER • Accurate BMI calculation — personalized by age, gender, height and weight. • Clear classification — see exactly which BMI category your result falls into. • Healthy weight range — discover the ideal weight for your height at a glance. • Progress tracking — log results over time and watch your trend with a detailed history. • Metric & US units — kilograms or pounds, centimeters or feet and inches. • Helpful content — practical tips and articles for a healthier lifestyle. • Works offline — calculate and track anytime, with no internet connection. • Light & dark themes — a clean, minimalist design that is easy on the eyes. • 70+ languages — built for users worldwide. BMI CATEGORIES • Severe thinness: less than 16 • Moderate thinness: 16 – 17 • Mild thinness: 17 – 18.5 • Normal: 18.5 – 25 • Overweight: 25 – 30 • Obese class I: 30 – 35 • Obese class II: 35 – 40 • Obese class III: more than 40 HOW IT WORKS 1. Enter your gender, age, height and weight. 2. Tap calculate to see your BMI and category instantly. 3. Save the result and track your body mass index as it changes over time. PERFECT FOR • Anyone starting a weight loss or fitness journey. • People who want to reach and maintain a healthy weight. • Men, women, teens and kids checking their body mass index. • Tracking progress before, during and after a diet. WHAT IS BMI? Body Mass Index (BMI) is your weight in kilograms divided by the square of your height in meters (kg/m²). It is a fast, internationally recognized screening tool that estimates body fat and flags whether you may be underweight, at a healthy weight, overweight or obese. It does not measure muscle or fat directly, but BMI is an easy, reliable starting point for understanding your body and setting realistic health goals. WHY TRACK YOUR BMI? Your weight naturally changes with diet, exercise, age and lifestyle. By recording your BMI regularly you can see whether your healthy-eating plan or fitness routine is working, catch unwanted trends early, and stay motivated with clear, visual proof of your progress. Whether you are losing weight, building healthier habits or simply keeping an eye on your wellbeing, BMI Calculator and Tracker turns a single number into real motivation. Watch your body mass index move in the right direction and celebrate every step toward your goal. BMI calculator and weight tracker: calculate your body mass index by age, gender, height and weight, see your healthy weight range, check body fat classification from thinness to obesity, and track your weight loss progress over time. Start today — calculate your BMI, set your goal and begin your journey to a healthier you. Medical disclaimer: this app does not provide medical advice, diagnosis, or treatment. Always seek your doctor's advice in addition to using this app and before making any medical decisions. Privacy Policy: https://www.shpavda.com/products/bmi-calculator/privacy/ Terms & Conditions: https://www.shpavda.com/products/bmi-calculator/terms/ios/

About

Open Me First

Features
Read full description

Feeling tempted by an urge to do something? Just need a little bit of space to get control back? Open Me First instead. Open Me First is a tiny pause button for you. When you feel the urge to do something that you don’t really want to do, tap this app first. Every urge or feeling can pass if you let it. Sometimes it’s hard to find the space to pause and breathe. This app gently guides you through a short breathing moment and a few calm, supportive messages. It reminds you that urges pass, feelings change, and you don’t have to act on every impulse. It stays with you until you feel strong enough to carry on. How it works • Open the app when you feel an urge to do something you don’t really want to do, or when you feel stuck in a thought loop. • Follow the simple on-screen breathing prompt. • Read a short, supportive message chosen for you. • Repeat the breathing and messages as many times as you like, and finish the session when you feel ready to move on. There are no accounts, no tracking, and no data collection. Everything happens on your device. The core experience is completely free. There is a one-time option to support the developer inside the app, but no pressure to do so. Why use it? • To stop yourself before you do something you don’t want to. • To create a tiny gap between feeling stressed and reacting. • To build a habit of pausing before you act. Open Me First is designed to be quiet, gentle, and completely private. It won’t judge you, it won’t nag you, and it won’t send notifications. It’s just a small space to breathe, think, and choose what you really want to do next.

Screenshots

BMI Calculator and Tracker4 screens
Open Me First4 screens

Verdict

The call

The clearest difference is ads: Open Me First at none against BMI Calculator and Tracker's shown. Open Me First also leads on update cadence (every 2 weeks vs every 2 months). BMI Calculator and Tracker's advantage is iOS requirement (13.0 vs 15.1). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BMI Calculator and Tracker sells 2 in-app purchases, starting at $0.99 per month and Open Me First sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BMI Calculator and Tracker ships an update every 2 months, Open Me First every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 6 level
BMI Calculator and Tracker versus Open Me First: the parameters behind the verdict, then further details
ParameterBMI Calculator and TrackerOpen Me First
PriceFreeFree
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size113 MB33 MB
Age rating12+4+
DeveloperSHPAVDA, TOOSteven Askew

In-app purchases

2 purchases

BMI Calculator and Tracker

Subscriptions2
  • Monthly Ad-Free$0.991 Month
  • Yearly Ad-Free$9.991 Year
10 purchases

Open Me First

One-time10
  • Support the Developer$0.99
  • Support the Developer$1.99
  • Support the Developer$2.99
Show 7 more
  • Support the Developer$4.99
  • Support the Developer$5.99
  • Support the Developer$7.99
  • Support the Developer$9.99
  • Support the Developer$12.99
  • Support the Developer$14.99
  • Support the Developer$19.99

Questions

Is BMI Calculator and Tracker free?
BMI Calculator and Tracker is free to download, with in-app purchases available.
Is Open Me First free?
Open Me First is free to download, with in-app purchases available.
Do BMI Calculator and Tracker or Open Me First have ads?
BMI Calculator and Tracker shows ads; Open Me First does not.
Which is updated more often, BMI Calculator and Tracker or Open Me First?
BMI Calculator and Tracker ships an update every 2 months, and Open Me First every 2 weeks. Most recently, BMI Calculator and Tracker was updated on October 24, 2026 and Open Me First on October 25, 2026.

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