With the Source Code Reader app it's easy to view the source code of a site directly on your iPhone or iPad. You can do this in the app or directly in Safari with the built-in Safari extension.
Full Specifications
What's new in version 3.0
- new design- Safari extension: You can open the source code directly in Safari- syntax highlighting- new font with adjustable size- iOS 9 support- iPhone 6, 6+ and iPad Pro support- 64-bit- and much more...