You also should try ASmart Remote IR and Samsung IR Universal Remote (there's also a paid version)
I have tried a lot of them and others don't worth interest for universal functions. Sorry I can't post links as I'm a baby member
I'm using Peel Smart Remote.
By the way, after my latest upgrade to MIUI 6.6.3.0(Stable) through fastboot I have found preinstalled "Mi Remote" app. Seems to be pretty not bad app.
You also should try ASmart Remote IR and Samsung IR Universal Remote (there's also a paid version)
I have tried a lot of them and others don't worth interest for universal functions. Sorry I can't post links as I'm a baby member