# Cat Probability Roulette vs AMC Math

The clearest difference is in-app purchases: AMC Math at none against Cat Probability Roulette's 1. AMC Math also leads on ads (none vs shown) and update cadence (daily vs every 2 months). Cat Probability Roulette's advantage is iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Cat Probability Roulette sells 1 one-off in-app purchase. AMC Math asks for nothing beyond the download.

Cat Probability Roulette ships an update every 2 months, AMC Math daily. The most recent releases landed on September 19, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Cat Probability Roulette | AMC Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Size | 145 MB | 96 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yusuke Okada](https://appshunter.io/developer/1793725878) | [Shyam Mishra](https://appshunter.io/developer/1839338953) |

## What reviewers say

### Cat Probability Roulette

[App page](https://appshunter.io/ios/app/cat-probability-roulette/id6754866024)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


### AMC Math

[App page](https://appshunter.io/ios/app/amc-math/id6758410205)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cat Probability Roulette free?

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

### Is AMC Math free?

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

### Do Cat Probability Roulette or AMC Math have ads?

Cat Probability Roulette shows ads; AMC Math does not.

### Which is updated more often, Cat Probability Roulette or AMC Math?

Cat Probability Roulette ships an update every 2 months, and AMC Math daily. Most recently, Cat Probability Roulette was updated on September 19, 2026 and AMC Math on September 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.*