orfox is only the one of the two parts of the tor browsers for android. if you search for tor browser in a regular browser like firefox ( the tor browser uses the same basic code as this one btw.) and sownload it there. open it and it will tell you stuff about itself. how to use and how not to. if you want to know how the encryption of the tor networks work just ask here and i will try to answer as good as i can.