Normally for changing the system font on an Android phone, you will need to root it. However most of the Android phones from Samsung like the Galaxy S4 and Note 3 have got a neat little feature using which you can change the system font even if you are not rooted.
By default, Galaxy S4 and Galaxy Note 3 come with five different fonts (Default, Rosemary, Choco cooky, Cool Jazz and Samsung Sans) from which you can choose. These are available in System Settings –> My Device –> Display –> Font. If this list is not sufficient for you, the good news is you have hundreds of more fonts to choose from.
Use iFont / My Font to change the system font on Samsung Galaxy S4 / Note 3
We can easily install any custom font on the Galaxy S4 and Note 3 using either iFont or My Font. Both the apps are free, have an extensive selection of fonts and work in a similar way. In this post we will be focusing on iFont.
In the current version, iFont has over 182 English fonts with new fonts added frequently. Installing a font is as easy as select, download and set. Select the font to download and then iFont will attempt to install it (Make sure applications from ‘Unknown Sources’ is checked in Security settings) like a normal app. Once installed, you can then find the font in Settings –> Display –> Font. The changes are applied instantly, no reboot required.
The app also has Japanese, Korean and Chinese fonts for non-English users. The free version of iFont is limited to three font downloads daily. If you want more, consider getting the donate version because it definitely adds a great way to customize your Android.