This app was mentioned in 3 comments, with an average of 1.00 upvote
This is a pretty good app for tracking builds on Android, but it doesn't actually have a real DPS calculator in there, just lists the standard damage. I can't find any real DPS simulators out there that are an app, or at least mobile friendly.
hello, I use https://play.google.com/store/apps/details?id=com.raxdenstudios.diablo3
So far it has been very reliable, kept up with patches. It doesn't offer PTR related data though (build planner for example).
Check out D3 Dashboard. Its what I've been using on android anyways. Fairly well made, though a little twisted to navigate (you get used to it).
https://play.google.com/store/apps/details?id=com.raxdenstudios.diablo3&hl=en