Supported Yes — Remote Pro controls it
The Freebox runs Google TV / Android TV, which is a platform Remote Pro speaks natively — over your own WiFi, no extra hardware.
The Freebox Player Pop and Delta from Free run Android TV / Google TV, so Remote Pro pairs with them using the standard 6-digit code — handy, because the Freebox remote is one of the easiest in the world to lose down a sofa.
Setup
Your Freebox and your iPhone need to be on the same WiFi network. That is the only requirement — no dongle, no hub, no infrared.
Connect your iPhone to the same WiFi network as the TV. Not the guest network, and turn off any VPN on the phone — a VPN hides the TV from it.
Open Remote Pro and tap Scan. Android TV and Google TV devices announce themselves on the network by name.
Tap your TV. It puts a 6-digit pairing code on screen — type that into Remote Pro. This is Google’s own encrypted handshake, and it only happens once.
Paired. Full D-pad, OK, back, home, volume, mute, power, playback, and your iPhone keyboard typing straight into search and sign-in fields.
More detail on this platform: Google TV / Android TV remote app for iPhone →
The honest part
The TV has to be awake for that first pairing, because you need to read the 6-digit code off the screen. After it is paired, Remote Pro can wake it from standby.
Remote Pro implements the current (v2) Android TV remote protocol — the one every Google TV and recent Android TV device uses. A very old set-top box still on the original protocol may not pair.
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.
Google’s free Google TV app has a built-in remote and it is good, provided you are signed into a Google account on your phone. Remote Pro pairs with the device directly, no account needed, and covers your Samsung, Fire TV and Roku gear too.
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.