# mkZero vs Marble Sudoku

The clearest difference is iOS requirement: mkZero at 12.2 against Marble Sudoku's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. mkZero sells 9 one-off in-app purchases and Marble Sudoku sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

mkZero ships an update every 5 weeks, Marble Sudoku every 2 months. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | mkZero | Marble Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/marble-sudoku-logic-puzzle/id6758958392/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 174 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [GameJab OÜ](https://appshunter.io/developer/1831019149) | [Luma Play UG (haftungsbeschränkt)](https://appshunter.io/developer/1875987428) |

## What reviewers say

### mkZero

[App page](https://appshunter.io/ios/app/mkzero-math-challenge/id6749543532)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads For 3 Days | $0.29 | one-time |
| 20 Lives | $0.99 | one-time |
| 50 Lives | $1.99 | one-time |
| 100 Lives | $3.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 300 Lives | $9.99 | one-time |
| 500 Lives | $14.99 | one-time |
| 1,000 lives! | $24.99 | one-time |
| Infinite Lives | $99.99 | one-time |


### Marble Sudoku

[App page](https://appshunter.io/ios/app/marble-sudoku-logic-puzzle/id6758958392)

This logic puzzle game reimagines classic Sudoku with colorful marbles on a wooden board. Enjoy various game modes, helpful tools, and offline play for a calming brain-training experience.

**Highlights:** Relaxing Sudoku with colorful marbles, Classic logic as a color puzzle, Offline play, Daily challenges, Four game modes, Smart Sudoku tools, Global leaderboards

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marble Sudoku - Monthly Premium | $1.99 | per month |
| Marble Sudoku Yearly Subscription | $8.99 | per year |
| Marble Sudoku Lifetime Premium | $14.99 | one-time |


## Frequently asked questions

### Is mkZero free?

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

### Is Marble Sudoku free?

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

### Do mkZero or Marble Sudoku have ads?

Both mkZero and Marble Sudoku show ads.

### Which is updated more often, mkZero or Marble Sudoku?

mkZero ships an update every 5 weeks, and Marble Sudoku every 2 months. Most recently, mkZero was updated on October 7, 2026 and Marble Sudoku on October 24, 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.*