Can I use the software on two or more computers? Is there a demo available? Is there a mobile version available? Are there other editions (compression, dynamics)?

I need to download the latest version

I don't remember my License Key I'm getting a "No more installs available" error I need to activate an offline computer

How much does it cost on USD (or other currencies)? Is it one-time payment? My credit card is not accepted I need an invoice I've paid, but I didn't receive an email Do you offer any sort of student discount?

I deleted the default exercises by mistake, how can I get them back? Where are the exercise packages?

I have upgraded to Sierra/HighSierra and TYE has stopped working TrainYourEars doesn't open There is no sound on the training