Sudoku BLA

Pure sudoku, no ads, no data collection, no subscription. 8000 puzzles, 4 levels, sand palette, dark mode, iCloud sync. Learn the rule, you know the game.

Sudoku, pure form.

Logic puzzle. No math, just deduction. Learn the rule, you know the game.

Every empty cell has 1 to 9 candidates. Your job is to eliminate until one is left. Each clue unlocks the next. It is like a mystery series, no jump scares, just investigation.

8,000 PUZZLES, 4 LEVELS

Easy, for elevator rides. Medium, to clear your head in 15 to 20 minutes. Hard, when your brain wants something to chew on. Expert, to get stuck on purpose and come back with a cold head.

HOW THE MODEL WORKS

25 free puzzles per difficulty, 100 total. To unlock all 8,000, one optional one-time purchase, "Unlock all". No subscription, no recurring charge. Bought once, yours forever, iPhone and iPad.

PURE SUDOKU

No ads. No data collection. No subscription. No daily challenge. No notifications. No login.

You play, you leave, you come back tomorrow or whenever. Puzzles in progress stay saved. Through iCloud, your progress follows you from iPhone to iPad without lifting a finger.

DETAILS WE INSISTED ON

BLA Sand palette. 3x3 block highlighted with a thicker separator line. Adaptive dark mode. BLA mode, optional: highlights in green the cells where a number no longer fits. Toggle in Settings. Integrated tutorial in two parts: the app basics and the Sudoku deduction techniques.

WHY IT EXISTS

When we started building apps at BLA, we wanted to practice logic first before diving into bigger projects. Sudoku became a design and code exercise at the same time. It was the first BLA app published.

Sudoku BLA is an app Developed in Goiânia by BLA Publicações e Conteúdo Digital, an independent editorial house, directed by Ivan Grycuk. BLA is a content powerhouse built over twenty years of experience in marketing, branding, and narrative.