Ankidroid is a great app of Android phone. The main purpose of the AnkiDroid is to let you learn flashcards in a very efficient way. It will help you to memorize almost anything. Thousands of different decks are available for download. Downloads are free. They are available in many languages and topics.
AnyMemo Free: Flash Card Study is study software and its salient features are: improvement on the adaptive algorithm of Mnemosine, SuperMemo and Anko; the text-to-speech function; MP3/OGG/WAV audio; and the option of downloading millions of DB flash cards, to study various languages including Arab, English, Chinese,
This application is a very popular one for kids of the preschool age. It teaches the toddlers how to use the touch screen interface.
The Funny Touch Screen application required Android 1.5 and higher and needs about 3 MB of download when the games are installed for the first time.