Using the Evollu Auditory Training application, you can train your hearing ability through an interactive game.

A game consists of several levels, which in turn contain several pairs of phonetically similar words.
When going through a level, the user will have to hear a word randomly chosen from a certain pair, and then he will have 3 seconds to select which word was heard.

In order to level up, at least 70% of the words heard must be correct.