update: With no explanation given by the providers of this app, all discussions regarding lessons are now "locked"/ disabled🧐🙄 Paid Version: Having splashed out for the paid version, I have now discovered that the description is wrong/false/misleading. While the description says: "downloadable courses for learning wherever you go!"... this feature is NOT AVAILABLE. Disappointing 😩 Free Version: Punishing students for mistakes is so archaic and retrogressive.