Simple Days counter

How to use. 1. Tap the screen. 2. From the displayed calendar dialogue, tap the desired date. Overview of the application. We will do one-tap calculations like "day after day", "day after that day". For example, if January 1, 2000 is today's date, December 31, 1999 is "1 day ago". On January 10, 2001 "After 9 days".