# BrainHack

> Utilities

Canonical page: [https://chrome-stats.com/d/id959976921](https://chrome-stats.com/d/id959976921)

## Overview

- **ID:** `id959976921`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Katsuma Tanaka
- **Category:** Utilities
- **Rating:** 4.20 / 5 (6 ratings)
- **Version:** 1.1.0
- **Last updated:** 2015-06-02
- **First published:** 2015-04-24
- **Size:** 11 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/brainhack/id959976921)
- **Website:** [http://questbe.at/](http://questbe.at/)
- **Privacy policy:** [http://questbe.at/](http://questbe.at/)

## Description

BrainHack is an interpreter app for B*******k.

The B*******k programming language is an esoteric programming language noted for its extreme minimalism.
It is a Turing tarpit, designed to challenge and amuse programmers, and was not made to be suitable for practical use.
It was created in 1993 by Urban Muller.

Commands:
> increment the data pointer (to point to the next cell to the right).
< decrement the data pointer (to point to the next cell to the left).
+ increment (increase by one) the byte at the data pointer.
- decrement (decrease by one) the byte at the data pointer.
. output a character, the ASCII value of which being the byte at the data pointer.
, accept one byte of input, storing its value in the byte at the data pointer.
[ if the byte at the data pointer is zero, then instead of moving the instruction pointer forward to the next command, jump it forward to the command after the matching ] command.
] if the byte at the data pointer is nonzero, then instead of moving the instruction pointer forward to the next command, jump it back to the command after the matching [ command.

## Rankings

- #425,424 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id959976921)