Instagram is introducing a new logo which is brighter and includes more color gradient than ever before. It also created a new typeface that will make the brand identity uniform across platforms.
Typeface RSS
Announced back in January, Twitter finally seems to be rolling out its new proprietary typeface called "Chirp" for desktop users. Reaction from the platform's users has been pretty mixed so far.
Helvetica Neue is widely used across iOS 8 and OS X Yosemite, but Apple may be replacing it in the new versions of its operating systems with 'San Francisco', the font it designed for the Apple Watch.