# Electro vs Color Sudoku

The clearest difference is in-app purchases: Electro at none against Color Sudoku's 5. Electro also leads on ads (none vs shown). Color Sudoku's advantage is update cadence (every 9 days vs every 42 months) and iOS requirement (11.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. Color Sudoku sells 5 one-off in-app purchases. Electro asks for nothing beyond the download.

Electro ships an update every 42 months, Color Sudoku every 9 days. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Electro | Color Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (10 ratings)](https://appshunter.io/ios/app/color-sudoku-logic-blocks/id6499296812/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 42 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 72 MB | 10 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandr Turkin](https://appshunter.io/developer/1453274000) | [MigoApps, LLC](https://appshunter.io/developer/441790439) |

## What reviewers say

### Electro

[App page](https://appshunter.io/ios/app/electro/id1455876231)

**Features:** macOS Compatibility

**In-app purchases:** none


### Color Sudoku

[App page](https://appshunter.io/ios/app/color-sudoku-logic-blocks/id6499296812)

This logic puzzle game challenges you to fill color regions with numbers 1-N without adjacent repeats, even diagonally. It offers smart notes, hints, and adjustable difficulty levels from Easy to Expert, with daily challenges and customizable themes.

**Highlights:** Color region number filling, No adjacent or diagonal repeats, Smart notes and hints, Multiple difficulty levels, Daily challenges, Customizable themes

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Hints | $0.99 | one-time |
| 25 Hints | $1.99 | one-time |
| Remove ads | $1.99 | one-time |
| 50 Hints | $2.99 | one-time |
| 125 Hints | $4.99 | one-time |


## Frequently asked questions

### Is Electro free?

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

### Is Color Sudoku free?

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

### Do Electro or Color Sudoku have ads?

Color Sudoku shows ads; Electro does not.

### Which is updated more often, Electro or Color Sudoku?

Electro ships an update every 42 months, and Color Sudoku every 9 days. Most recently, Electro was updated on October 15, 2026 and Color 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.*