Showing 1–20 of 1,000 ranked alternatives.
Staple Games, LLC
Play and solve puzzles
Solve puzzles by filling 9×9 grids with digits 1-9. Choose from four difficulty levels. Store notes for possible numbers. Use hints to fill missing digits. Complete daily challenges. Clear grids when all numbers are placed.
Peter Li
Memorize with color and music
Memorize of pi using color and musical notes for enhanced recall. View numbers in chunks with customizable pages and lines. Compete on leaderboards and earn achievements. Practice daily for improved retention.
Nicholas McNamara
Improve arithmetic skills with practice.
The app provides arithmetic practice with tips and game modes. It supports various problem sizes and operations, offering step-by-step instructions for all difficulty levels.
Asato Imai
Improve working memory with brain training.
The app is a brain trainer designed to improve working memory. Users select a level and memorize addition answers, then tap the last digit of a previous answer.
Oscar Tsang
Of pi with ease
Of π with customizable sequences and repetition reminders. Track progress with daily goals and review sessions. Export memorized as text or share via social media.
Applorium Ltd
Memorize digits with stats
Memorize digits with customizable Piems and voice recitation. Track progress with performance stats and sound effects. Reverse digit order for practice. Compete with friends via Center. Set high scores and challenge others.
John Detloff
Play puzzles anytime
Solve puzzles by filling grids with digits. Enter numbers in rows and columns to match clues. Avoid repeating digits in any row or column. Access a large library of free puzzles. Track progress and restart puzzles.
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