Earmaster EarMaster 7

Software is user friendly, although there are issues with using the mic (could be my mic though).
I am a musician and have been playing the guitar for 30 years now. You think you can get a very good ear training software at a fraction of the price of the best ear training course there is around, which is the David Lucas Burge's one (both perfect and relative pitches). You are wrong. Building relative pitch takes months, and it's a long journey anyway. There are no shortcuts. This is a somewhat fun software, but don't be fooled: you will not achieve relative pitch with this method. If you buy this one thinking you will save money, you will instead waste time and you will end up buying the Burge's one anyway, if you are serious about unlocking your ear. I hope this was helpful.