# Memorize Prime Numbers vs RxAce

The clearest difference is review sentiment: RxAce at 100% against Memorize Prime Numbers's 50%. RxAce also leads on rating (5.0 vs 3.0) and ads (none vs shown). Memorize Prime Numbers's advantage is price (Free vs $2.99). On ratings volume, in-app purchases, device support and iOS requirement there is nothing between them.

Memorize Prime Numbers is free to download; RxAce costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RxAce holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 50% of Memorize Prime Numbers's written reviews are positive against 100% of RxAce's.

## The numbers

| Metric | Memorize Prime Numbers | RxAce |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/memorize-prime-numbers/id6475699754/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rxace-naplex-prep/id6790689656/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | — |
| Monetization | Ad-supported | — |
| Size | 84 MB | 1 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Karan Kohli](https://appshunter.io/developer/1896505451) |

## 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


### RxAce

[App page](https://appshunter.io/ios/app/rxace-naplex-prep/id6790689656)

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

**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 RxAce free?

RxAce costs $2.99, with no in-app purchases.

### Which has better reviews, Memorize Prime Numbers or RxAce?

RxAce is rated higher. Memorize Prime Numbers averages 3.0 out of 5 from 2 ratings, while RxAce averages 5.0 from 1 ratings.

### Do Memorize Prime Numbers or RxAce have ads?

Memorize Prime Numbers shows ads; RxAce does not.

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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.*