# Mersenne Primes vs Pax Bible

The clearest difference is in-app purchases: Pax Bible at none against Mersenne Primes's 1. Mersenne Primes's advantage is iOS requirement (9.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Mersenne Primes sells 1 one-off in-app purchase. Pax Bible asks for nothing beyond the download.

Mersenne Primes ships an update weekly, Pax Bible every 11 days. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Mersenne Primes | Pax Bible |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mersenne-primes/id1362004527/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Monetization | Free with in-app purchases | — |
| Size | 60 MB | 90 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [华 魏](https://appshunter.io/developer/454719266) | [Pax Bible Verein](https://appshunter.io/developer/1809835991) |

## 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 |


### Pax Bible

[App page](https://appshunter.io/ios/app/pax-bible/id6504634093)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mersenne Primes free?

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

### Is Pax Bible free?

Pax Bible is free to download, with no in-app purchases.

### Do Mersenne Primes or Pax Bible have ads?

Neither Mersenne Primes nor Pax Bible shows ads.

### Which is updated more often, Mersenne Primes or Pax Bible?

Mersenne Primes ships an update weekly, and Pax Bible every 11 days. Most recently, Mersenne Primes was updated on November 2, 2026 and Pax Bible on November 4, 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.*