The Batak languages are spoken in and around the province of North Sumatra in Indonesia.This small set of phrases and vocabulary will focus on Batak Karo.

To use the app, simply specify the range of cards you'd like to cycle through from the entire set. You may also swap which language is displayed first by toggling the checkbox labeled "Swap Languages". Click start and the flashcards in the range you selected will be shuffled. Clicking the top card of the pile will reveal the answer as well as move it down and out of the way. If you click the card again after it's revealed it will be moved to a "repeat" pile so you can try it again later.