# Probability Quiz vs Quick Math Challenge!

The clearest difference is update cadence: Probability Quiz at every 5 days against Quick Math Challenge!'s fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Probability Quiz sells 2 one-off in-app purchases and Quick Math Challenge! sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Probability Quiz ships an update every 5 days, Quick Math Challenge! fortnightly. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Probability Quiz | Quick Math Challenge! |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 7 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Hookshot Ltd](https://appshunter.io/developer/530135978) | [Alex Lee](https://appshunter.io/developer/1070983855) |

## What reviewers say

### Probability Quiz

[App page](https://appshunter.io/ios/app/probability-quiz/id6746767871)

Test your intuition with this fun trivia game where you guess which of two events is more likely. With thousands of questions and simple gameplay, it's a great way to sharpen your logic and learn surprising facts about odds.

**Highlights:** Guess probability between two events, Thousands of unique questions, Learn about odds and likelihoods, Simple and addictive gameplay, Quick play sessions, Suitable for all ages

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Morbid Curiosities | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |


### Quick Math Challenge!

[App page](https://appshunter.io/ios/app/quick-math-challenge/id6747409960)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Slow Timers | $1.99 | one-time |
| 10 Hints | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Probability Quiz free?

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

### Is Quick Math Challenge! free?

Quick Math Challenge! is free to download, with in-app purchases available.

### Do Probability Quiz or Quick Math Challenge! have ads?

Both Probability Quiz and Quick Math Challenge! show ads.

### Which is updated more often, Probability Quiz or Quick Math Challenge!?

Probability Quiz ships an update every 5 days, and Quick Math Challenge! fortnightly. Most recently, Probability Quiz was updated on October 2, 2026 and Quick Math Challenge! on October 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.*