Calculator -Custom Formula

・The calculator supports up to 16 digits for integers and 10 digits for decimals, with customizable decimal places and rounding methods. It also supports real‑time calculation and implicit multiplication. No function (scientific) features are included.
・The calculation history can store dates and free‑form memos. You can reuse past entries, copy them, or export them as CSV files.
・It can also be used as a dated memo pad.
・You can customize the calculator screen with your own colors, button shapes, and font styles, and set either a wallpaper or a slideshow as the background. You can register an unlimited number of images, and the app includes features that let you enjoy images even while calculating.
・A feature is also included that lets you force the screen into image‑only mode at any time.
・Starting from Ver. 2.0, you can create multiple themes, customize each one individually, and have them automatically switch based on a weekly schedule.
・All 24 buttons can have their own images assigned, allowing them to serve as day‑of‑week image memos. You can also register a second image for each button and protect it with a password. This enables secret uses such as storing QR‑code tickets from screenshots or saving photos of your favorite idols.
・Additional Features
- Tax-Included / Tax-Excluded / Discount Calculation & History Saving
- Stopwatch (1/1000 sec) & History Saving

※The “User Guide” section provides detailed instructions.
※Supports both smartphones and tablets. Tablets also support screen rotation.