If you were to say the name of a few applications off the top of your head, chances are Instagram and Snapchat would make the top five. Instagram burst onto the scene in 2012, with Snapchat following in a similar fashion the following year. However both applications fail to comply with Google’s recommended Holo guidelines, which unifies the Android operating system under one UI.
Holification Nation is a new growing community which aims to fix this issue by applying the polished UI to these applications, followed soon enough by other apps that are in need of a new design.
So far the two man team (Connor Kirkby & Brandon D’Souza) have applied the Holo UI to Instagram, Snapchat, Steam and Grooveshark, all which can be installed as a replacement without the need to root or modify a device in any way.
You can find the download links for these mods over at XDA Developers, and I highly recommend you become active in their Google+ community by requesting an invitation.