They removed the ability to split purchases between credits and credit card. So if a purchase is $6.99 and you have $5.99 in credit, you can't use your credit. So you might just want to buy a dollars worth of credit. You can't. You can only buy credit in $10 increments. It's a swindle. Old review: The app is easy to use and works well, but some of the surveys are poorly designed.