Hi Yuan, The app has majorly tow modes, namely the Receiving mode and the Sending mode. In the Sending mode, users learn and train how to type and send the Morse code (dits and dahs). I hope that’s what your suggestion is about. Best regards.
Hi friend, I see your comment is in simplified Chinese so I’m wondering are you living in China Mainland? Unfortunately, Google Play store is blocked there while in-app purchases can only be made through your Google account. I’m very sorry about the inconveniences but I also wish my app could be available in China Mainland. I hope you understand.