# Combinations & Probabilities vs HexBit

The clearest difference is price: Combinations & Probabilities at Free against HexBit's $3.99. Combinations & Probabilities also leads on update cadence (weekly vs monthly). HexBit's advantage is ads (none vs shown) and iOS requirement (17.0 vs 26.0). On in-app purchases and device support there is nothing between them.

Combinations & Probabilities is free to download; HexBit costs $3.99 up front. Combinations & Probabilities sells 1 one-off in-app purchase and HexBit sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Combinations & Probabilities ships an update weekly, HexBit monthly. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Combinations & Probabilities | HexBit |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Monthly |
| Size | 33 MB | 2 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | +4 | 4+ |
| Developer | [Joao Carrion](https://appshunter.io/developer/1044104256) | [ZHENGQIAO JIANG](https://appshunter.io/developer/1892168889) |

## 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 |


### HexBit

[App page](https://appshunter.io/ios/app/hexbit-programmer-calculator/id6765887852)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly | $29.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Combinations & Probabilities free?

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

### Is HexBit free?

HexBit costs $3.99, and also offers in-app purchases.

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

Combinations & Probabilities shows ads; HexBit does not.

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

Combinations & Probabilities ships an update weekly, and HexBit monthly. Most recently, Combinations & Probabilities was updated on October 19, 2026 and HexBit on October 10, 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.*