This app is a calculator specialized for timecode and frame-based calculations. It operates in the same way as a regular calculator, and can calculate timecode and convert between frames.

This app is a loan calculator that can easily calculate the monthly and the total repayment amount. Enter the loan amount, interest rate, and repayment period, and see your monthly payment, total repayment, and the total interest you will pay — all updated as you type. 

This app calculates the risk of ruin. Simply move the sliders, so that you can easily simulate the risk of ruin. It displays that the table of the risk of ruin changing the orientation of the device.

A notebook written in places and times. Save a photo and a note, then retrace your day on the map, in order. For trips, and for site visits you have to report on.

This app calculates the heating time of the microwave. MicroCalc converts the wattage and heating time shown in recipes or on food packaging for the microwave you want to use.

Priceish turns a foreign price tag into a number you actually feel. You are standing in a shop abroad. The tag says $25. Priceish tells you what that means in the money you think in — before the moment passes.

This is a study app for the Japanese Constitution. It has functions for filling in the blanks of articles, displaying past answer history, and referencing articles.

This is a study app designed to help you memorize Civil Code articles through fill-in-the-blank quizzes. It employs four question formats and a spaced-repetition system—re-presenting questions just as you are about to forget them—to ensure retention.