# Sudoku Rabbit vs PhosphorX

The clearest difference is in-app purchases: PhosphorX at none against Sudoku Rabbit's 1. PhosphorX also leads on ads (none vs shown) and review sentiment (100% vs 68%). Sudoku Rabbit's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (39 vs 2). On price, rating and device support there is nothing between them.

Both are free to download. Sudoku Rabbit sells 1 one-off in-app purchase. PhosphorX asks for nothing beyond the download.

PhosphorX holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Sudoku Rabbit has 39 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 68% of Sudoku Rabbit's written reviews are positive against 100% of PhosphorX's.

Sudoku Rabbit ships an update fortnightly, PhosphorX every 2 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sudoku Rabbit | PhosphorX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (39 ratings)](https://appshunter.io/ios/app/sudoku-rabbit/id6742900571/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/phosphorx/id6795330551/reviews)** |
| Number of ratings | **39** | 2 |
| Positive reviews | 68.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 81 MB | 3 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhun Wah Edward Lui](https://appshunter.io/developer/1800495090) | [Dillon Blake](https://appshunter.io/developer/6792988370) |

## What reviewers say

### Sudoku Rabbit

[App page](https://appshunter.io/ios/app/sudoku-rabbit/id6742900571)

Enjoy a seamless Sudoku experience with no un-skippable ads and a one-thumb-friendly design. Compete with friends in real-time, tackle daily challenges, and customize your gameplay with endless puzzles and fun options.

**Highlights:** Endless offline puzzles, Real-time competitive play, One-thumb controls, Daily challenges and rankings, Profile and gameplay customization, Dark theme and hardcore mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $7.99 | one-time |


### PhosphorX

[App page](https://appshunter.io/ios/app/phosphorx/id6795330551)

This reflex arcade game challenges players to tap or swipe based on gate color and direction. Score is banked only at gold gates, creating a risk-reward dynamic. Hesitation accelerates the game, leading to a swift end.

**Highlights:** Risk/reward "bank it" scoring, Tap and swipe controls, Escalating drift mechanic, Haptic feedback, Game Center leaderboards, Offline play, Minimalist aesthetic

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Rabbit free?

Sudoku Rabbit is free to download, with in-app purchases available.

### Is PhosphorX free?

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

### Which has better reviews, Sudoku Rabbit or PhosphorX?

PhosphorX is rated higher. Sudoku Rabbit averages 4.8 out of 5 from 39 ratings, while PhosphorX averages 5.0 from 2 ratings.

### Do Sudoku Rabbit or PhosphorX have ads?

Sudoku Rabbit shows ads; PhosphorX does not.

### Which is updated more often, Sudoku Rabbit or PhosphorX?

Sudoku Rabbit ships an update fortnightly, and PhosphorX every 2 months. Most recently, Sudoku Rabbit was updated on November 4, 2026 and PhosphorX on October 31, 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.*