To get the Freeview mobile app you need an Android phone or tablet running Android OS 4.4 KitKat and above, or an iPhone or iPad running iOS 11 and above.
What else do I need?
You'll need a minimum internet connection of 2Mbps and all the associated channel apps – which are BBC iPlayer, ITV Hub, All 4, My5 and UKTV Play.
Don't forget that you'll also need a TV licence. Once you've paid for it, though, with Freeview you don't need to pay anything else on top. For more information visit tvlicensing.co.uk.