Head to this page on the Roblox website to install Roblox Studio. A pop-up window will appear informing you that Roblox Studio is installing so you know you are on the right track.

Roblox Studio is a free program players can download, install, and use to create their very own Roblox games.

Minimum requirements to play Roblox on iOS, Android and Fire OS Apple iOS: iPad 2 or higher, iPhone 4s or higher, and iPod touch 5th Generation. iOS 9 or greater is required.