Comparison

Simple BMI evaluator vs Ideal BMI

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

Head to head
About

Simple BMI evaluator

Features
Read full description

Enter your weight and height to see your Body Mass Index. The result updates as you type. Designed to work with VoiceOver: every field and button has a spoken label, your BMI is read together with its WHO category, the healthy weight range is read as a full sentence, and weight changes made with the +/- buttons are announced. Supports Dynamic Type: text and the BMI scale follow the text size chosen in iOS settings. WHAT IT SHOWS • Classic BMI and Trefethen's revised BMI (Oxford, 2013), which fits very tall and very short people better • WHO category, from severe thinness to obesity class III • The weight range that counts as normal for your height • A color scale showing where your value falls ALSO • Kilograms and meters, or pounds and feet • +/- buttons to adjust your weight without retyping it • Share the result • iPhone and iPad, no account needed Formulas and tables come from official sources, listed in the app under References. This app gives information only. It is not a medical device and does not replace advice from a doctor.

About

Ideal BMI

Calculate your Body Mass Index (BMI) using weight, height, age, and sex. Understand your weight status according to WHO classifications and find your ideal weight. Track your BMI history and share your progress.

Highlights
  • Accurate BMI calculation
  • WHO-based insights
  • Ideal weight determination
  • BMI history tracking
  • Suitable for all ages
  • Shareable progress reports
Features
Read full description

Track Your Health with Our Advanced BMI Calculator This ultimate solution calculates your BMI (Body Mass Index) using your body weight, height, age, and sex information. Supporting both metric and imperial units, it simplifies the understanding of your weight status. Using the World Health Organization's (WHO) BMI classification, you can discover whether you’re underweight, at a normal weight, overweight, or obese. Automatically calculate your BMI and take action to maintain or achieve your ideal weight today. • What You Can Do: Calculate Your BMI Accurately: Receive precise BMI results using a scientifically validated formula. WHO-Based Insights: Benefit from BMI results that are in line with the World Health Organization's standards for a globally recognized assessment of your weight status. Find Your Ideal Weight: Determine the optimal weight for your health and body type. Log and Track Your BMI History: Monitor your progress over time with accessible history logs. Designed for Everyone: Whether you’re an adult, teen, or looking for a BMI calculator for your children, this app is suitable for all ages. Share Your Health Journey: Effortlessly share your BMI results and progress with family, friends, or healthcare professionals. • Why It’s Essential: Instant BMI Insights: Quickly assess your BMI and track changes in your weight. Prevent Health Risks: Stay informed about your weight status to help prevent diseases like hypertension, heart disease, and diabetes. Achieve Your Ideal Weight: Get tips and insights to help you reach and maintain an optimal weight. Advanced Health Calculator: Offers more than just BMI calculation, with advanced features to help you monitor and improve your health. Best of all, this BMI calculator is completely free to use! Disclaimer: This app is not a substitute for professional medical services. It should not replace diagnosis, professional treatment, or medical advice from healthcare providers. If you have any existing medical conditions, please consult your doctor. For more detailed information about BMI, visit the World Health Organization (WHO) website. • Privacy and Legal Privacy Policy: https://wotoapp.com/imc_privacy Terms: https://wotoapp.com/imc_terms

Screenshots

Simple BMI evaluator4 screens
Ideal BMI4 screens

Verdict

The call

The clearest difference is in-app purchases: Simple BMI evaluator at none against Ideal BMI's 2. Ideal BMI's advantage is ads (none vs shown) and update cadence (weekly vs every 3 months). On price, 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. Ideal BMI sells 2 in-app purchases, starting at $4.99 per 7 days. Simple BMI evaluator asks for nothing beyond the download.

UpkeepUpdate frequency

Simple BMI evaluator ships an update every 3 months, Ideal BMI weekly. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Simple BMI evaluator versus Ideal BMI: the parameters behind the verdict, then further details
ParameterSimple BMI evaluatorIdeal BMI
PriceFreeFree
Rating—4.7 (138 ratings) — better
Positive reviews—33.3% of reviews
Number of ratings—138 — better
Update frequencyEvery 3 monthsWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size30 MB48 MB
Age rating17+4+
DeveloperSonya MarcarelliWOTO DIJITAL HIZMETLERI ANONIM SIRKETI

In-app purchases

None

Simple BMI evaluator

No in-app purchases

2 purchases

Ideal BMI

Subscriptions2
  • Unlimited Access$4.997 Days
  • Unlimited Access7 Days trial$29.991 Year

Questions

Is Simple BMI evaluator free?
Simple BMI evaluator is free to download, with no in-app purchases.
Is Ideal BMI free?
Ideal BMI is free to download, with in-app purchases available.
Do Simple BMI evaluator or Ideal BMI have ads?
Simple BMI evaluator shows ads; Ideal BMI does not.
Which is updated more often, Simple BMI evaluator or Ideal BMI?
Simple BMI evaluator ships an update every 3 months, and Ideal BMI weekly. Most recently, Simple BMI evaluator was updated on October 11, 2026 and Ideal BMI on October 24, 2026.

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