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 781–800 of 1,000 ranked alternatives.

  1. Einstein: the Riddle app icon

    Einstein: the Riddle

    Davide Sardei

    Solve logic puzzles and track progress

    Solve logic grid puzzles by organizing clues and eliminating possibilities. Track progress through increasing difficulty levels. Use deduction to find the unique solution for each puzzle.

    ★ 1.01 ratingsGamesFreeData updated 2026-09-06
  2. TapReaction app icon

    TapReaction

    Lars Bergelt

    Train reaction time with color and numbers.

    The app tests reaction time through color and number modes. Users can select board size and playing time to train reaction skills.

    ★ 4.01 ratingsGamesFreeData updated 2026-09-12
  3. Bored app icon

    Bored

    Patrick Kelly

    Stop one piece on center.

    The app is a puzzle game where the objective is to stop a specific piece on the center space. All puzzles have solutions and feature pieces that move until blocked or off the board.

    ★ 5.01 ratingsGamesFreeData updated 2026-09-11

How we rank alternatives

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