Katie and David share 20 of their favorite Mac Apps under $20 each.

Freshbooks: Online invoicing made easy.
Casper: Because everyone deserves a great night sleep. Get $50 off with the code ‘MPU’
Automatic Connect your car to the rest of your digital life. Use code macpower to get 20 percent off your order
1Password Have you ever forgotten a password? Now you don't have to worry about that anymore.