# Challenge! Sudoku vs ReMolthar

The clearest difference is device support: ReMolthar at 4 against Challenge! Sudoku's 2. Challenge! Sudoku's advantage is iOS requirement (12.0 vs 15.0). On price, review sentiment, update cadence and ads there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Challenge! Sudoku | ReMolthar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/challenge-sudoku-classic-game/id6468818921/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | Free | Free |
| Size | 58 MB | 77 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [kyulabs](https://appshunter.io/developer/1380867471) | [nTeko](https://appshunter.io/developer/1580329453) |

## What reviewers say

### Challenge! Sudoku

[App page](https://appshunter.io/ios/app/challenge-sudoku-classic-game/id6468818921)

Engage in classic Sudoku puzzles with a competitive edge. Challenge players globally and locally to achieve top rankings on leaderboards. Customize difficulty levels to suit your skill, from beginner to expert.

**Highlights:** Global ranking system, Compete with friends, Multiple difficulty levels, User-friendly interface, Record sharing

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

**In-app purchases:** none


### ReMolthar

[App page](https://appshunter.io/ios/app/remolthar/id6770003287)

Engage in a strategic card game where players collect pearl cards to activate character cards and earn points. The first to reach 12 points triggers a final round, with the highest score winning. Utilize unique character abilities and a diamond system to adjust card values and achieve victory.

**Highlights:** Collect Pearl and Character Cards, Activate characters for points, Diverse activation cost combinations, Utilize Diamond system for card adjustments, Unique character abilities, Real-time online multiplayer (2-5 players), AI bot support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Challenge! Sudoku free?

Challenge! Sudoku is free to download, with no in-app purchases.

### Is ReMolthar free?

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

### Do Challenge! Sudoku or ReMolthar have ads?

Neither Challenge! Sudoku nor ReMolthar shows ads.

### Which is updated more often, Challenge! Sudoku or ReMolthar?

Challenge! Sudoku ships an update every 2 days, and ReMolthar every 2 days. Most recently, Challenge! Sudoku was updated on October 30, 2026 and ReMolthar 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.*