# Minimal BMI Calculator vs Probability Sim

The clearest difference is in-app purchases: Minimal BMI Calculator at none against Probability Sim's 2. Minimal BMI Calculator also leads on ads (none vs shown) and update cadence (monthly vs every 10 months). On price and device support there is nothing between them.

Both are free to download. Probability Sim sells 2 in-app purchases, starting at $4.99 per month. Minimal BMI Calculator asks for nothing beyond the download.

Minimal BMI Calculator ships an update monthly, Probability Sim every 10 months. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Minimal BMI Calculator | Probability Sim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 10 months |
| Size | 7 MB | 29 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Julian Lau](https://appshunter.io/developer/1603050262) | [kota tada](https://appshunter.io/developer/1658942612) |

## What reviewers say

### Minimal BMI Calculator

[App page](https://appshunter.io/ios/app/minimal-bmi-calculator/id6443783288)

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

**In-app purchases:** none


### Probability Sim

[App page](https://appshunter.io/ios/app/probability-sim-trillion/id6743378063)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free for 1 month | $4.99 | per month |
| Ad-free for 1 year | $49.99 | per year |


## Frequently asked questions

### Is Minimal BMI Calculator free?

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

### Is Probability Sim free?

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

### Do Minimal BMI Calculator or Probability Sim have ads?

Probability Sim shows ads; Minimal BMI Calculator does not.

### Which is updated more often, Minimal BMI Calculator or Probability Sim?

Minimal BMI Calculator ships an update monthly, and Probability Sim every 10 months. Most recently, Minimal BMI Calculator was updated on October 25, 2026 and Probability Sim on October 22, 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.*