What is it you even want though?
Cause you can get stuff to measure pitch for free. You can find all the tips you need for free. You can get people to judge your voice on these forums, and others (although sometimes it takes a while to get any response), for free.
Like throwing money at it aint gonna help. Unless you are throwing a lot of money at Yeson or a voice therapist. I do not think there is anything ont he internet that is the equivalent of a magic bullet as it were.
