It looks like Google is experimenting with flipping this upside down, though. A new search bar has been spotted sitting right on top of the bottom navigation bar comprising home, search, and saved.

WhatsApp has once again introduced the bottom navigation bar for Android users with the latest beta update. The navigation bar, which was previously introduced and then removed by the company, is ...

WhatsApp's Android app is getting a user-friendly redesign with a bottom navigation bar, addressing users' feedback for an interface overhaul.

Bottom navigation bars allow movement between primary destinations in an app. Contributors A bottom navigation bar contains three to five items, each representing a different top-level destination ...

Google is rolling out a new update to its YouTube Android app, which switches the main navigation bar from the top to the bottom.

Twitter has announced (on Twitter, of course) that they'll be updating the Android version of their app to bring the navigation bar to the bottom, departing from the top navigation bar that we've ...

Back in September, Gmail for Android removed text labels from its core navigation element; this change now makes sense as Google is making the bottom bar more persistent.