# Memorize Prime Numbers vs Multiply Fun

The clearest difference is ads: Multiply Fun at none against Memorize Prime Numbers's shown. Multiply Fun also leads on update cadence (monthly vs every 14 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Memorize Prime Numbers ships an update every 14 months, Multiply Fun monthly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Memorize Prime Numbers | Multiply Fun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/memorize-prime-numbers/id6475699754/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 84 MB | 6 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Mr.Darcy](https://appshunter.io/developer/377347580) |

## What reviewers say

### Memorize Prime Numbers

[App page](https://appshunter.io/ios/app/memorize-prime-numbers/id6475699754)

Learn to memorize hundreds of prime numbers within a week using a provided method. This app offers a unique approach to remembering these special numbers.

**Highlights:** Memorize hundreds of prime numbers, Learn a provided memorization method, Focus on prime number recall, Suitable for quick learning

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

**In-app purchases:** none


### Multiply Fun

[App page](https://appshunter.io/ios/app/multiply-fun-9x9/id6737981759)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Memorize Prime Numbers free?

Memorize Prime Numbers is free to download, with no in-app purchases.

### Is Multiply Fun free?

Multiply Fun is free to download, with no in-app purchases.

### Do Memorize Prime Numbers or Multiply Fun have ads?

Memorize Prime Numbers shows ads; Multiply Fun does not.

### Which is updated more often, Memorize Prime Numbers or Multiply Fun?

Memorize Prime Numbers ships an update every 14 months, and Multiply Fun monthly. Most recently, Memorize Prime Numbers was updated on October 25, 2026 and Multiply Fun on October 30, 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.*