YUAYUA

Sudoku & Number Touch

Free · Designed for iPad. Not verified for macOS.

Think faster, remember more, and beat your best with Number Place, Number Touch, memory challenges, mental arithmetic, and leaderboards in YUAYUA! YUAYUA is a small game collection created for someone special. It started when a Korean boyfriend wanted to make simple and enjoyable games for his Japanese girlfriend, Yua. “Games that are easy to pick up and enjoy whenever you have a little free time.” With that idea in mind, YUAYUA brings together Number Place, Number Touch, memory challenges, mental arithmetic, and more — simple games that make you want to try again and beat your best. 【Number Place】 Enjoy classic Sudoku with a variety of stages and unique game modes. Challenge yourself with CLASSIC, TIME ATTACK, MEMORY, FOG, NO MEMO, BOSS, and more — each offering a different way to enjoy Sudoku. 【Number Touch】 Find and tap the numbers in order as quickly as possible. Challenge yourself across NORMAL, HARD, EXTREME, and other difficulty levels, and aim for a new personal best. 【Calculator】 Take on unique challenges using a calculator-style interface. Test your ability to remember numbers, recall input sequences, and complete different number-based challenges. 【Memory Test】 Memorize the numbers shown on the screen and enter them correctly. As the level increases, the challenge becomes harder. See how far your memory can take you! 【Mental Arithmetic Test】 Numbers appear one after another — calculate the answer in your head and see how accurately you can keep up. Challenge your mental math skills and aim for your best result. 【Free Calculator】 YUAYUA also includes a simple calculator that you can use freely outside of the games. 【YUAYUA Features】 • No advertisements • Simple and clean design • Easy to pick up and play • Multiple games, stages, and difficulty levels • Number puzzles, speed, memory, and mental arithmetic challenges • Light and dark mode support • Background music and sound effects • Challenge your personal best • More games planned for future updates • No unnecessary features that Yua wouldn’t like YUAYUA started as a small app made for one person, but we hope it can now become a game collection enjoyed by many. Think faster. Remember more. Calculate better. And keep challenging your own best. Made for Yua, and shared with everyone. We hope you enjoy YUAYUA.

Ratings & Reviews

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What's New YUAYUA has been updated with improvements to audio, game progression, Calculator games, Game Center, and iPad usability. ・Added support for playing YUAYUA while listening to YouTube, Music, Spotify, and other external audio. External audio will no longer be interrupted, while YUAYUA automatically pauses only its BGM and keeps sound effects available. ・BGM automatically resumes when external audio ends, only if BGM is enabled in Settings. ・New installations now start with the default BGM and sound effect volume set to 30%. Existing volume settings are preserved. ・Improved Calculator game feedback. In Memory, Sequence, Number Input, and Mental Arithmetic games, incorrect answers now reveal the correct answer for 5 seconds with a Next button. ・Improved Sequence Memory with an option to show or hide numbers and a guide explaining the 0–9 sound mapping to the white keys of C major. ・Improved the Mental Arithmetic hub on iPad with a compact three-column layout for better use of the screen. ・Expanded the XP and level system with separate progression for Number Touch, Number Place, and Calculator activities. ・Character Level is now calculated from your combined game levels, with more detailed progress displayed in the Profile. ・Improved XP migration for existing players so previous progress is preserved. ・Expanded XP rewards for ranking and challenge modes. ・Improved Game Center integration with new leaderboards, score submission, and in-app ranking displays. ・Added links in Settings to YUAYUA News, Patch Notes, Privacy, and Support pages, with localized destinations. ・Various UI, localization, audio, and stability improvements.

Version 1.1.1

The developer, SANGHYUN SONG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    SANGHYUN SONG
    Size
    245 MB
    Category
    Puzzle
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Sanghyun Song
  • Developer Website
  • Privacy Policy

    • Supports

    • Game Center

      Discover new games and play with friends. This game also features leaderboards.

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