This App is perfect for people who wants to record time and calculate elapsed time. Every time you press + button record date and hour in a file, shows a message and shows elapsed time. Because date and time are in a file we can switch off mobile or close App and we won't loose records. I did this because when android needs memory closes the Apps, so this way user don't loose records. Also shows message. Is perfect for people who wants to record times and elapsed times and is not in front of com