# Mersenne Primes vs 世图粤读

The clearest difference is review sentiment: Mersenne Primes at 100% against 世图粤读's 30%. Mersenne Primes also leads on rating (5.0 vs 3.5) and update cadence (weekly vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Mersenne Primes sells 1 one-off in-app purchase and 世图粤读 sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Mersenne Primes holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of Mersenne Primes's written reviews are positive against 30% of 世图粤读's.

Mersenne Primes ships an update weekly, 世图粤读 every 3 months. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Mersenne Primes | 世图粤读 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mersenne-primes/id1362004527/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/id1481027706/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 30.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 60 MB | 82 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [华 魏](https://appshunter.io/developer/454719266) | [世界图书出版广东有限公司](https://appshunter.io/developer/1245007348) |

## What reviewers say

### Mersenne Primes

[App page](https://appshunter.io/ios/app/mersenne-primes/id1362004527)

Explore and view the digits of all known Mersenne prime numbers. Witness the generation process for extremely large primes, page by page, and locate specific digits by their sequence number.

**Highlights:** View all digits of known Mersenne Primes, Witness prime number generation process, Page-by-page digit exploration, Locate specific digits by sequence number, Generates primes using mobile CPU

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Support | $0.99 | one-time |


### 世图粤读

[App page](https://appshunter.io/ios/app/id1481027706)

Access interactive digital books with accompanying audio and video content. Experience realistic page-turning effects for an engaging and efficient learning experience. This app is developed by World Book Publishing Guangdong Co., Ltd.

**Highlights:** Interactive digital books, Audio and video content, Realistic page-turning effects, Efficient learning tools, Multimedia book companion

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6阅读币 | $0.99 | one-time |
| 3阅读币 | $0.99 | one-time |
| 12阅读币 | $1.99 | one-time |
| 18阅读币 | $2.99 | one-time |
| 25阅读币 | $3.99 | one-time |
| 7天会员 | $3.99 | one-time |
| 50阅读币 | $6.99 | one-time |
| 68阅读币 | $9.99 | one-time |
| 1个月会员 | $9.99 | one-time |
| 非续订半年 | $19.99 | one-time |
| 非续订一年 | $29.99 | one-time |


## Frequently asked questions

### Is Mersenne Primes free?

Mersenne Primes is free to download, with in-app purchases available.

### Is 世图粤读 free?

世图粤读 is free to download, with in-app purchases available.

### Which has better reviews, Mersenne Primes or 世图粤读?

Mersenne Primes is rated higher. Mersenne Primes averages 5.0 out of 5 from 1 ratings, while 世图粤读 averages 3.5 from 2 ratings.

### Do Mersenne Primes or 世图粤读 have ads?

Neither Mersenne Primes nor 世图粤读 shows ads.

### Which is updated more often, Mersenne Primes or 世图粤读?

Mersenne Primes ships an update weekly, and 世图粤读 every 3 months. Most recently, Mersenne Primes was updated on October 16, 2026 and 世图粤读 on October 25, 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.*