When we are making website as responsive web design (RWD), iPhone always displays in smart phone size.
If your iPhone displays website in not only smart phone size but also tablet (like iPad) size or PC size, it will be convenient for you.
We made an application that can switch browser screen size.
1. Can switch browser width (customizable).
2. Can change browser's user agent.
3. Can save websites in bookmarks.
Support Latest iOS.