# Combinations & Probabilities vs DM50

The clearest difference is price: Combinations & Probabilities at Free against DM50's $0.99. Combinations & Probabilities also leads on update cadence (weekly vs monthly). DM50's advantage is in-app purchases (none vs 1) and ads (none vs shown).

Combinations & Probabilities is free to download; DM50 costs $0.99 up front. Combinations & Probabilities sells 1 one-off in-app purchase. DM50 asks for nothing beyond the download.

Combinations & Probabilities ships an update weekly, DM50 monthly. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Combinations & Probabilities | DM50 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Monthly |
| Size | 33 MB | 1 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | +4 | 4+ |
| Developer | [Joao Carrion](https://appshunter.io/developer/1044104256) | [Javier Bascones](https://appshunter.io/developer/473518239) |

## What reviewers say

### Combinations & Probabilities

[App page](https://appshunter.io/ios/app/combinations-and-probabilities/id6758729922)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C&P Pro | $2.99 | one-time |


### DM50

[App page](https://appshunter.io/ios/app/dm50/id6760961234)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Combinations & Probabilities free?

Combinations & Probabilities is free to download, with in-app purchases available.

### Is DM50 free?

DM50 costs $0.99, with no in-app purchases.

### Do Combinations & Probabilities or DM50 have ads?

Combinations & Probabilities shows ads; DM50 does not.

### Which is updated more often, Combinations & Probabilities or DM50?

Combinations & Probabilities ships an update weekly, and DM50 monthly. Most recently, Combinations & Probabilities was updated on October 19, 2026 and DM50 on October 13, 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.*