# 2357P vs PrimeXTime

The clearest difference is rating: PrimeXTime at 5.0 against 2357P's 3.0. PrimeXTime also leads on update cadence (every 4 months vs every 15 months). 2357P's advantage is iOS requirement (15.0 vs 17.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

PrimeXTime holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

2357P ships an update every 15 months, PrimeXTime every 4 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 2357P | PrimeXTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/2357p/id957233368/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/primextime/id1253706544/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 6 MB | 6 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuantong Lu](https://appshunter.io/developer/884739279) | [Rick Hutchinson](https://appshunter.io/developer/1253697991) |

## What reviewers say

### 2357P

[App page](https://appshunter.io/ios/app/2357p/id957233368)

A simple number-based game where players decompose and compose numbers using prime bases 2, 3, 5, and 7. Aim to achieve higher scores and compete on the Game Center leaderboard.

**Highlights:** Number decomposition, Number composition, Prime number bases (2, 3, 5, 7), Score-based gameplay, Game Center leaderboard integration

**Features:** macOS Compatibility

**In-app purchases:** none


### PrimeXTime

[App page](https://appshunter.io/ios/app/primextime/id1253706544)

Engage your mind with a unique number-based puzzle game. Start with a random number and strategically divide by single-digit primes. Bump the number by multiplying by 10 and adding a digit to reach 1 and win.

**Highlights:** Number division by primes, Strategic bumping mechanic, Goal to reduce number to 1, Brain exercise gameplay, Simple, intuitive interface

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

**In-app purchases:** none


## Frequently asked questions

### Is 2357P free?

2357P is free to download, with no in-app purchases.

### Is PrimeXTime free?

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

### Which has better reviews, 2357P or PrimeXTime?

PrimeXTime is rated higher. 2357P averages 3.0 out of 5 from 2 ratings, while PrimeXTime averages 5.0 from 2 ratings.

### Do 2357P or PrimeXTime have ads?

Neither 2357P nor PrimeXTime shows ads.

### Which is updated more often, 2357P or PrimeXTime?

2357P ships an update every 15 months, and PrimeXTime every 4 months. Most recently, 2357P was updated on October 15, 2026 and PrimeXTime on October 13, 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.*