riu app?

So since I'm using my android phone for riu I have a ton of problems with it. Going through a couple support forums I did see mention of an riu app but can't find it on the play store. Does the app actually exist?

I don't think it's up and running anymore

What problems are you having with Riu on your phone and what phone do you have

It's a ZTE model Z796C, android 4.1.2 straight talk service.All kinds of problems, wont let me hit the like button or my profile button. They eventually work but after multiple taps. For instance I tap the like button and it highlights like I touched it but doesn't do anything. When I type within a reply box; the page I'm on jumps to the top of the page multiple times forcing me to scroll down multiple times, or the keyboard will disappear and I can't get it to come back w/o restarting phone. Certain pages will completely freeze my internet, pg 158 of the post a pic of pet thread is notorious for this.
IE will suddly exit itself.
Phone will restart itself.
I can't quote a post first in my reply or my text jumps up into the quote and screws it up(this is always whereas these other problems are only about 1/3 of the time)