The Square app (iOS and Android) is great for this, though it’s mostly geared for businesses to use as a cash register. And you either need the small card reader, or you have to key in a credit/debit card number. But Square just introduced the Cash app, which lets you send money with a text message. The money goes directly into the recipient’s bank account in seconds, compared with several days when using PayPal.
The transaction is free for the sender, and 2.75% to 3.5% for the recipient. Pricing details are here. For more info, see www.square.com/cash.
Of course, Excel is the 800 lb. gorilla in this category, and most of the course focuses on it, but the course will also help if you’re using other applications, like Google Sheets, Apple Numbers, LibreOffice Calc, and the web and mobile versions of Excel. You can finish the course in about a day. Exercise files are included.
My full-length Adobe Illustrator CC and CS6 courses are at TotalTraining.com.