# BMI Formula vs RehApp

The clearest difference is ads: RehApp at none against BMI Formula's shown. RehApp also leads on update cadence (monthly vs every 60 months) and iOS requirement (13.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

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

BMI Formula ships an update every 60 months, RehApp monthly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | BMI Formula | RehApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/bmi-formula-my-wellness/id1148323018/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 60 months | **Monthly** |
| Monetization | Free | — |
| Size | 11 MB | 3 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Nattapon Kittisuphat](https://appshunter.io/developer/1112583260) | [Theo Weijmer](https://appshunter.io/developer/1626239753) |

## What reviewers say

### BMI Formula

[App page](https://appshunter.io/ios/app/bmi-formula-my-wellness/id1148323018)

Calculate and track your Body Mass Index with a simple, user-friendly interface. Get clear interpretations of your results and access offline functionality. Share your progress and learn more about BMI.

**Highlights:** Clean and user-friendly UI, Imperial and Metric units, Interpreted results with colors, Save calculated BMI, User BMI information, Offline functionality, Social sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### RehApp

[App page](https://appshunter.io/ios/app/rehapp/id1626239751)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BMI Formula free?

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

### Is RehApp free?

RehApp is free to download, with no in-app purchases.

### Do BMI Formula or RehApp have ads?

BMI Formula shows ads; RehApp does not.

### Which is updated more often, BMI Formula or RehApp?

BMI Formula ships an update every 60 months, and RehApp monthly. Most recently, BMI Formula was updated on November 2, 2026 and RehApp on November 7, 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.*