Decoder app icon

Apps Like Decoder for iPhone and iPad

Solve mastermind puzzles with guesses and scores

Solve Mastermind-style puzzles by selecting guesses and scoring them. The narrows down possible solutions based on scores. Users can track remaining options and repeat steps until a single solution remains.

by Edwin Hou★ 1.25 ratingsGamesFreeData updated 2026-09-08

Decoder screenshots

Ranked alternatives

Showing 981–1000 of 1,000 ranked alternatives.

  1. CHINESE - SPEAKit.TV (Video Course)  (5X006VIMdl) app icon

    CHINESE - SPEAKit.TV (Video Course) (5X006VIMdl)

    PROLOG Limited

    Learn languages through video lessons.

    The app offers language learning through videos covering everyday situations. Users listen, read subtitles, and repeat words and phrases.

    ★ 0.00 ratingsEducationFreeData updated 2026-09-23
  1. Math Blast ! app icon

    Math Blast !

    Metin Boz

    Solve puzzles with numbers and cards

    Solve puzzles using addition and subtraction on a 5x5 grid. Place numbers 1 to 9 to achieve high scores. Use 3 cards per round to avoid filling the grid. Track progress and challenge brainpower with strategic gameplay.

    ★ 0.00 ratingsGamesFreeData updated 2026-09-06
  2. Hoggy 2 app icon

    Hoggy 2

    Raptisoft

    Rescue kids, solve jars, collect keys

    Navigate a world of jars to rescue kidnapped children. Stick to ceilings and floors to solve puzzles and collect keys. Open doors to progress through 220 levels with secret solutions and alternate goals.

    ★ 0.00 ratingsGames$4.99Data updated 2026-09-12
  3. Oyster Errors • London app icon

    Oyster Errors • London

    Frostmd LLP

    Understand London transport ticket errors.

    The app reveals secret error codes for ticket barrier gates on the London Underground, Overground, DLR, and National Rail. Users can input barrier codes to understand the numbers behind gate rejections.

    ★ 0.00 ratingsTravel$1.99Data updated 2026-11-04
  4. 6x6 Mini Sudoku Puzzles app icon

    6x6 Mini Sudoku Puzzles

    Kunjeshkumar Virani

    Solve 6x6 and track time

    Solve 6x6 with grids containing digits 1 to 6. Fill rows, columns, and 2x3 boxes without repeating numbers. Track progress and attempt to complete in minimum time.

    ★ 0.00 ratingsGamesFreeData updated 2026-09-06
  5. Arithmetic Workbook DX app icon

    Arithmetic Workbook DX

    GLODING INC.

    Learn arithmetic for school success.

    The app presents 12 units of elementary school arithmetic, with 10 questions each day for 50 days per unit. Content difficulty increases, preparing pupils for junior high entrance exams.

    ★ 0.00 ratingsEducationFreeData updated 2026-10-25

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.