Nintendo has confirmed that Super Mario Run will be releasing for iPhone and iPad in December 2016.
The base game will be free to download but does have in-app purchases and not the kind you can avoid. The game will be free to download and play a portion of the endless runner. However, to play all of the game you will need to pay to download the rest. Nintendo is calling it “Free-to-Start.”
You can see Super Mario Run listed in the App Store but it is currently unavailable to download. Nintendo’s other recent release is available, though, in the form of Super Mario Run Stickers which is available to download now as a free app but does require your iPhone or iPad is updated to iOS 10.0 or later.