How to change font style in iphone

How to Change Font Style and Size on iPhone with/without...
The iPhone, iPhone 3G, and iPhone 3GS came with the Helvetica fonts interface. The iPhone 4 and later models used a more fanciful revised font

3 Ways to Change the Font on iPhone - wikiHow
This wikiHow teaches you howto alter your iPhone's font by enlarging and/or bolding it. Unfortunately, there is no way tochange the iPhone's system font from within settings or by downloading an app; if you want to be able tochange the font used throughout your iPhone to a different font altogether.

How to change the font style on your iPhone - UnlockUnit
This is how you can change the fontstyle on your iPhone, relying just on a few simple settings. But what if you want something that really stands out?

How To Change Font Style, Size, And Color Of Email On iPhone
The app lets you change the fontstyle, font color, and font size and lets you embed the same text in email on your iPhone. With this, it becomes possible