The IFTTT app has been out for 15 years. IFTTT stands for If This Then That. And that is just what it does. If you (or more precisely, one of your apps) does something, it will trigger something else to happen, which in turn could trigger something else, and so on. Let's not get too far ahead of ourselves.
IFTTT came out the same year as the iPad and the same year Netflix stopped renting DVDs. Initially, IFTTT only supported 22 different apps. Go to IFTTT.com and create an account.
Here is an example :
Track your daily Fitbit activity in a Google spreadsheet
