# Lights Out vs Chessdoku

The clearest difference is ads: Chessdoku at none against Lights Out's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Lights Out sells 1 one-off in-app purchase and Chessdoku sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Lights Out ships an update every 2 months, Chessdoku every 5 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Lights Out | Chessdoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chessdoku/id6789803491/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 70 MB | 32 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Huy Huynh](https://appshunter.io/developer/1815003126) | [Matt Falk](https://appshunter.io/developer/6789803493) |

## What reviewers say

### Lights Out

[App page](https://appshunter.io/ios/app/lights-out-light-up/id6751258801)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Chessdoku

[App page](https://appshunter.io/ios/app/chessdoku/id6789803491)

This logic puzzle game combines Sudoku-style placement with chess piece attack rules. Solve over 1,500 unique puzzles across five distinct game modes, with a daily challenge for all players. Enjoy a pure, offline experience with no ads or tracking.

**Highlights:** Sudoku-style piece placement, Chess piece attack logic, Five unique game modes, 1,500 puzzles, Daily challenge, Offline play, Hint system with deductions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Everything | $4.99 | one-time |


## Frequently asked questions

### Is Lights Out free?

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

### Is Chessdoku free?

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

### Do Lights Out or Chessdoku have ads?

Lights Out shows ads; Chessdoku does not.

### Which is updated more often, Lights Out or Chessdoku?

Lights Out ships an update every 2 months, and Chessdoku every 5 weeks. Most recently, Lights Out was updated on October 25, 2026 and Chessdoku 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.*