inviting new friends

Would be nice if there was an invite button so you can invite new people to play the game with you. Also like the songpop party Idea that someone else posted where you could create a party where you and certain people challenge each other. Also, the free trials are somewhat hard to find at times because they never are listed in the "free trials" area they are mixed in with everything else, and takes a long time to get the coins buy new lists, maybe a discount on cost. Like if someone did a free trial and got all theirs guesses right they could buy the list for a discounted amount of coins.