# Prime Logic

> Prime Number Brain Puzzles

Canonical page: [https://chrome-stats.com/d/id6766418614](https://chrome-stats.com/d/id6766418614)

## Overview

- **ID:** `id6766418614`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Naoki Chiba
- **Category:** Puzzle
- **Version:** 1.2
- **Last updated:** 2026-06-24
- **First published:** 2026-05-07
- **Size:** 12 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/jp/app/prime-logic/id6766418614?l=en-US)
- **Website:** [https://thivanao-jp.github.io/app-support/prime-sudoku/](https://thivanao-jp.github.io/app-support/prime-sudoku/)
- **Privacy policy:** [https://thivanao-jp.github.io/app-support/prime-sudoku/privacy-policy.html](https://thivanao-jp.github.io/app-support/prime-sudoku/privacy-policy.html)

## Description

New: a Daily Challenge with streaks - plus full English support!

Prime Logic is a collection of brain-teasing puzzles built entirely on prime numbers.

[ Prime Place ]
A fresh twist on Sudoku. Instead of 1-9, you place the first nine prime numbers (2, 3, 5, 7, 11, 13, 17, 19, 23) so no row, column, or 3x3 block repeats. There is a hidden beauty, too: every line always adds up to 100. Three difficulty levels, freshly generated each time.

[ Prime Sums ]
A cage puzzle (Killer Sudoku) using only primes. Fill each dotted cage so its numbers match the target sum. Choose from 4x4, 6x6, and 9x9 grids across Easy / Normal / Hard, with 300+ handcrafted stages.

[ Daily Challenge ]
A new puzzle every single day. Keep your streak alive and beat your best run.

Features
- Notes mode for jotting down candidates
- Hearts and hints to support your solving
- Clean, distraction-free design
- Universal app for iPhone and iPad

Sharpen your mind with the elegance of prime numbers.

## Rankings

- #2,034,083 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6766418614)
