Frameless is a web browser for iOS 8+ that gets out of your way. It was built for designers and prototypers who need to interact with your prototypes in a "native" device environment but also works to browser most websites.
Framer Studio Users
I highly recommend downloading and using the official Framer viewer app for iOS. It's got a more robust feature set than Frameless and is actively maintained by the Framer team.
Frameless is currently unsupported: I haven't been actively maintaining or fixing issues with Frameless since late 2015.
You can still download the most recent release of Frameless (October 15, 2015) to your iPhone from the iOS App Store.