Learn By Heart Pro

This app helps you memorize stuff. Use it to take notes of what you need to know, and it will take care of the rest. It keeps track of how well you remember information and helps plan timely reviews.

The app supports text, images, and audio recordings, and includes audio training screens.

It can also serve as a reference database. Quickly find information in questions or answers using a keyword.

It is possible to create study cards on a computer too. The process is described on the help screen. There is a shared online database with quizzes as well.