Masayuki Iwasaki

Do you want to know the download number of that App?"Rank＜＞Sales" allows you to estimate the sales from the ranking in the App Store, or vice versa.It …

This app allows you to measure the approximate length by moving your iPhone. Now, you don't have to carry a measuring tape. Tap [Ready?] button to sta …

Jump-Meter P allows you to measure the height and duration of your vertical jump or leap.Just jump with your iPhone, that's it.This app measures the f …

Caution : This app is for iPhone 4 & 4S.This app allows you to measure accelerating performance of your car or bike.Three different ranges of measurem …

This App is for people who are interested in physics. Drop your iPhone to a cushion, never to a hard floor. It lets you measure the flight duration in …

This App works as a timer, stopwatch, and counter.It applies to various purposes from instant noodles to sports.-- 1/1000 sec accuracy.-- First bell, …

Rad Calc is an App allowing you to calculate total radiation exposure.It accumulates external and internal exposure after changing values [Bq] into [m …

Active Calc is a new-generation CALCULATOR which allows you to calculate quickly and intuitively. You do not have to tap an equal key, because it work …