What do you use for a remote now that WatchOn won't open

I can still access the remote in the notification shade on my 8.4, but it'll only work for the last room I used and has a lot less buttons. I tried to use Peel Smart Remote which is what my Note 4 uses. However it won't install on the 8.4 and I had to side load it from APK Mirror. Sadly it won't work in landscape orientation, so you end up turning to use the remote and it stays in portrait mode.

The best I've found so far is ASmart Remote it's free, works with my devices, and works in landscape. The ads are a bit annoying, I wish I could pay to turn those off.
https://play.google.com/store/apps/d...motefreegalaxy