Showing 1–20 of 1,000 ranked alternatives.
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.
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.
LIHUHU PTE. LTD.
Play wood blocks and match numbers
Clear the board by removing pairs of equal digits or digits that add up to the same . Tap to match pairs and remove them. Track progress and challenge yourself with increasing difficulty levels.
Tim O's Studios, LLC
Play Sudoku and solve puzzles
Play Sudoku to challenge your mind with a 9×9 grid. Fill rows, columns, and 3×3 sub-grids with digits 1–9. Choose from easy, medium, hard, or expert levels. Disable numbers after all instances are entered. Use note-taking and hints when needed.
SUPERSONIC STUDIOS LTD
Collect digits, build towers, battle cards
Collect digits to form the largest number and earn in-game currency. Use earned money to build tower barracks. Deploy soldiers in a battle card game to fight and progress.
Doodle Mobile Limited
Play and solve puzzles
Play by filling a 9x9 grid with numbers 1-9 without repeating in rows, columns, or boxes. Solve daily puzzles with varying difficulty levels. Track progress and complete challenges to improve logic and problem-solving skills.
Boy Howdy Technology LLC
Play cards and match pairs
Tap cards to find matching pairs and remove them from the board. Clear the board in the fewest taps possible. Choose from seven difficulty modes including new Very Easy (3x3). Use hundreds of emoji images. Play endless levels without a timer.
Metajoy Limited
Clear digits by matching pairs of ten
Clear the game board by matching pairs of equal digits or digits that add to ten. Tap ADD to introduce new numbers when no matches remain. Track progress through multiple pages.
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.
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.
JAYKEI GAMES LLC
Numbers, tap to match
The target number among colorful digits. Tap quickly to beat the timer. Track progress and set daily challenges. Improve focus and mental agility through simple, timed puzzles.
Memorize By Heart, LLC
Text with flashcards and repetition
Text through familiarization with selective letter and word removal, tap-to-reveal features, and speech-to-text playback. Reinforce retention with unscramble, fill-in-the-blank, and typing exercises. Track progress and review memorized content.
Chess Book, Inc.
Build custom chess
Identify weak and gaps in your repertoire. Train with spaced repetition to reinforce key lines. Avoid obscure moves and handle transpositions. Analyze online games to find mistakes. Build custom repertoires based on probable game paths.
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