0h n0

Name: 0h n0
Rating: 4.9 (124 reviews)
Author: Q42 B.V.

By: Q42 B.V.

Puzzle

Features & Capabilities

0h n0 is a charming companion puzzle to 0h h1. It offers a free, ad-free logic game built around blue and red dots and three simple rules:

Blue dots can see others in their own row and column.
Their numbers tell how many.
Red dots block their view.

Solve without guessing, coloring tiles blue or red to complete each grid. Available boards include 4x4, 5x5, 6x6, 7x7, 8x8, and 9x9 for endless play.

Play in Zen mode for a relaxed challenge, or push your speed in time trials to beat your best times. Earn achievements and climb leaderboards while enjoying a small, ad-free gameplay experience. 0h n0 is accessible on 0hn0.com, and if you enjoy it, explore its sibling at 0hh1.com.

User Growth & Download Statistics

App Games Entertainment Education

By:

Q42 B.V.

Rating:

4.90

(124)

Version:

1.0.6 Last updated: 2017-10-21

Version code:

841492306

Creation date:

2015-02-12

Compatible devices:

Size:

3.00MB

URLs:

Website

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-07

Compare stats and ranking:

Ranking

# 134,510 ▲ 878

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Q42 B.V.

Apple Apps Store

https://apps.apple.com/us/app/0h-n0/id957191082

Website:

http://0hn0.com

User Reviews

0h n0 is a minimalist, distraction-free puzzle game with a calming vibe. It offers multiple board sizes with scalable difficulty, delivering strong replayability and long-term engagement. The game is easy to understand, quick to pick up, and works offline with no ads. Recurring drawbacks include unclear hints, a timer that won’t pause reliably, and puzzles that quickly become easy, leaving players craving larger or more challenging boards.

Pros

Varied board sizes and scalable difficulty offer new patterns and a zen-like experience.
High replayability and personal progress tracking (leaderboard) keep you coming back.
Distraction-free design with no ads and offline play.
Easy to understand and quick to master; accessible puzzle mechanics.
Calming, zen puzzle feel that's great for unwinding.

Cons

Hints are indecipherable or not helpful.
Timer doesn’t pause properly or continues running in the background.
Puzzles quickly become easy; limited challenging content and a desire for larger boards.

Recent reviews

It’s great if you like sudoku or similar games, I just wish I could restart a board or pause and return to a board later. Then the game would be perfect

by Ka*****, 2024-10-14

It is so simple, yet so effective. It’s a great puzzler to unwind as it is just difficult enough to challenge you but not impossible. Additionally the fact that you can determine your own level of difficulty of the puzzle every time is wonderful. 10/10 have shared with so many people.

by Si*****, 2024-05-31

0h n0 is easy to understand and fun to master. You can choose between a range of boards, the bigger the board, the more patterns to analyze and solve. Lower boards are great for new players to make sure they don't get overwhelmed and incrementally level-up. As they become a seasoned player they may know that each board can be completed without guessing, so the different sized boards can offer a zen like experience as they zip their way to completion. Every individual has a different baseline level of stimulation, allowing seasoned players to go back to the earlier boards and find their own zen board. My zen board is the 5x5. The competitive aspect is engaging for me personally. I compete with myself for the best times, but try to go for the endurance "boards completed" leaderboard for my zen board. I've been tracking a few active players in a spreadsheet and it's cool to see our rates vs absolute scores. The app itself is distraction free. No ads. No internet required. You can play anytime, anywhere, and fully immerse yourself into the game. The app does have some imperfections, right now there are 3 main bugs with the app, first is that you can't skip through the menu making the "impatient" achievement impossible, and the second is opening game center sometimes crashes the game. Pairing those two together can be annoying for competitive play. The other bug is that the timer gets disabled when you visit certain menus (How to play does this i think). I've also had some fun exploring potential shortcuts to save time. I've found out two major time savers which I call the blind dot rule and the related dot rule. I leave that as an exercise for the reader 😉 Overall, great game! ❤️