Anzan Sense

Flash mental math trainer

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

More than adding numbers! Filter out letter & photo noise, apply 2x/3x/subtract rules, and try audio or dual modes. No ads, no purchases, no data collection. Numbers flash one at a time and you add them up in your head. A simple but deep flash mental math game. Three modes and flexible settings train your calculation, focus and working memory. Three modes - Standard: add the flashing numbers (the basic mode) - Listen: numbers are not shown, they are spoken aloud. Listen and add - Dual: two columns flash at once. Enter each total Settings - Difficulty: 4 levels (changes the flashing speed) - Digits: 1-digit / 2-digit / 3-digit - Numbers per problem: 5 to 20 - Problems per session: 3 to 15 Extras (optional spice) - Letter noise: hiragana / kanji mix in. Ignore them and add only numbers - Conditional rules: star doubles your total, diamond triples it, triangle subtracts - Photo distraction: your own photos flash in briefly (with permission) Records Your correct count and accuracy are tracked. Beat your best accuracy per mode and difficulty! No ads. No in-app purchases. No data collection.

Ratings & Reviews

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• Switched from a paid app to free with an in-app purchase. Free: Easy to Normal (1-digit) Premium: unlocks Normal (2- and 3-digit), Hard, and Extreme • Added "Restore Purchase" — handy when you change or reinstall your device. • Minor refinements.

Version 1.0.2

The developer, seiji honda, 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
    • seiji honda
    Size
    • 2.2 MB
    Category
    • Family
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • Mac
      Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • Japanese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © Seiji Honda
  • Privacy Policy

    • More by seiji honda