No. When you do a pronunciation exercise:
- The audio is sent encrypted to our own server.
- Our speech engine, installed on that server, turns it into text and evaluates your answer.
- The audio is deleted immediately. The recognized answer is used to grade the exercise and show your result, and it's kept only while the level is in progress: it's deleted when the level is completed or restarted.
Your history keeps only the exercise result (correct or incorrect) and technical recognition data, such as timings and confidence level. We don't send your voice to third-party speech recognition services.