Supported Yes — Remote Pro controls it
The Roku runs Roku OS, which is a platform Remote Pro speaks natively — over your own WiFi, no extra hardware.
Roku players — Express, Streaming Stick, Streambar, Ultra — are the single easiest thing to control from an iPhone: Roku accepts local network control out of the box, with no pairing, no PIN and no prompt.
Setup
Your Roku and your iPhone need to be on the same WiFi network. That is the only requirement — no dongle, no hub, no infrared.
Put your iPhone on the same WiFi network as the TV. The main network, not the guest one — this is the single most common reason a phone cannot see a television.
Open Remote Pro and tap Scan. Every Roku on the network appears by the name it was given during setup (“Living Room TV” and friends).
Tap your TV. There is no pairing step at all — Roku accepts local control out of the box, so the remote screen opens immediately. No PIN, no prompt on the TV.
Press something. On a Roku TV you also get volume, mute, power and channel, because the television itself is the Roku.
More detail on this platform: Roku TV remote app for iPhone →
The honest part
If nothing shows up, one setting is usually to blame: on the TV go to Settings → System → Advanced system settings → Control by mobile apps → Network access and set it to Default. Some sets ship with it disabled. Remote Pro detects this and shows you the path.
Roku sticks and boxes are different from Roku TVs: their sound comes out of the television they are plugged into, so no network command can change the volume. Remote Pro detects which type you have and only shows buttons that actually work.
An iPhone has no infrared blaster, so a television that is only controllable by infrared cannot be controlled by any phone app — ours or anyone else’s. We say that on every page rather than hide it in a review reply.
The official Roku app is free and includes a remote plus private listening. It is a bigger app doing several jobs and nudges you toward a Roku account. Remote Pro opens straight onto a remote and also covers Samsung, Fire TV and Android TV in the same house.
Remote Pro controls Samsung, Fire TV, Android TV / Google TV and Roku from one app, over your own WiFi. Full D-pad, volume where the platform supports it, and a real iPhone keyboard for search fields.
Get Remote Pro — free on the App Store Get →