Cheers
mclarendude for the ping, the RWI App is a "branded" version of Tapatalk that hasn't been updated in years and won't ever be again.
It's basically Tapatalk but with only access to RWI, there's really little to no point in using it instead of the regular tapatalk.
I find the best way to use RWI on mobile is simply the web browser of your choice, the forum is working nice on mobile, everything is displayed nicely on it. Tapatalk has notifications, that's the only difference