# BMI vs Simple BMI evaluator

The clearest difference is in-app purchases: Simple BMI evaluator at none against BMI's 1. Simple BMI evaluator also leads on update cadence (every 3 months vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BMI sells 1 one-off in-app purchase. Simple BMI evaluator asks for nothing beyond the download.

BMI ships an update every 6 months, Simple BMI evaluator every 3 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | BMI | Simple BMI evaluator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (158 ratings)](https://appshunter.io/ios/app/bmi-bmr-calculator/id1225911847/reviews)** | — |
| Number of ratings | **158** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 30 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Thang Nguyen](https://appshunter.io/developer/921360262) | [Sonya Marcarelli](https://appshunter.io/developer/409702204) |

## What reviewers say

### BMI

[App page](https://appshunter.io/ios/app/bmi-bmr-calculator/id1225911847)

Calculate your Body Mass Index (BMI) and Ideal Body Weight. It also computes your Basal Metabolic Rate (BMR) and Total Energy Expenditure. Track your daily weight, water intake, and exercise to monitor progress.

**Highlights:** BMI calculation, Ideal Body Weight range, BMR and Total Energy Expenditure, Daily weight tracking, Water intake tracking, Exercise time tracking, US and Metric units support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $4.99 | one-time |


### Simple BMI evaluator

[App page](https://appshunter.io/ios/app/simple-bmi-evaluator/id1637061785)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BMI free?

BMI is free to download, with in-app purchases available.

### Is Simple BMI evaluator free?

Simple BMI evaluator is free to download, with no in-app purchases.

### Do BMI or Simple BMI evaluator have ads?

Both BMI and Simple BMI evaluator show ads.

### Which is updated more often, BMI or Simple BMI evaluator?

BMI ships an update every 6 months, and Simple BMI evaluator every 3 months. Most recently, BMI was updated on November 2, 2026 and Simple BMI evaluator on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*