Simple Fun Calculator

A simple, clean calculator — with your own personal touch.

[Core Features] · Tax calculation (8% / 10% switchable) · Discount calculation · Memory function (up to 10 values, tap to add to expression) · Intuitive button layout

[Memory Function] Save your frequently used numbers with a single tap — store up to 10 values at once. Tap any saved number to instantly add it to your expression.

[Customization (Partially Paid)] Set unique sounds and vibrations for each button. Choose from a variety of sounds: click, tock, pop, chime, and more. Pick your vibration style: soft, light, medium, heavy, and beyond. Rearrange buttons freely so your most-used functions are always within reach.

You can preview sounds, vibrations, and button layouts for free. Go Premium (¥280, one-time) to save your settings permanently.

[Premium Plan — ¥280 (One-time)] · Save & apply your custom button layout · Assign sounds and vibrations to individual buttons · Yours forever with a single purchase

Simple, fun, and just a little bit satisfying.