---
title: "0h n0 — App Overview"
url: https://marlvel.ai/intel-report/games/0h-n0
category: Games
developer: Q42 B.V.
platforms: ios, android
rating: 4.7 (3.8K ratings)
pricing: free
report_level: overview
generated: 2026-04-16
---

<!-- SECTION: Key Insight -->
> **Key Insight:** 0h n0 is a high-quality, completely free logic puzzle game that prioritizes a clean, ad-free user experience.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Games |
| Rating | 4.7 ★ (3.8K) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 1.0.6 |
| Latest Version (Android) | 1.1.0 |
| Developer | Q42 B.V. |

<!-- SECTION: Summary -->
## What is 0h n0?

0h n0 is a logic-based puzzle game that challenges players to complete grids by placing blue and red dots according to specific visibility rules. It offers a distraction-free experience across multiple board sizes, ranging from 4x4 to 9x9. The app is notable for its minimalist design, lack of advertisements, and offline accessibility.

<!-- SECTION: Key Features -->
## Key Features

- **Logic-Based Gameplay**: Players solve puzzles by placing blue and red dots based on numerical constraints without the need for guessing.
- **Multiple Grid Sizes**: The app provides unlimited puzzles across six board dimensions, ranging from 4x4 to 9x9.
- **Dual Play Modes**: Users can choose between a pressure-free Zen mode or competitive time trials with leaderboards and achievements.
- **Distraction-Free Design**: The app contains no ads, no locked features, no nag screens, and does not require an internet connection.

<!-- SECTION: Target Audience -->
## Who is it for?

Puzzle enthusiasts seeking a logic-based, distraction-free gaming experience that can be played in short bursts or extended sessions.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/0h-n0/id957191082?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=com.q42.ohno&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/intel-report/games/0h-n0)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/games/0h-n0).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*