The company tested the tab bar on iOS to see how it impacted user engagement. It found that users with the tab bar ended up clicking 9% more in general and 30% more on actual menu items. The tests also revealed that reducing the number of options in the tab bar to five increased the reach of Spotify’s programmed content, the company says.
Spotify says it tested the tab bar with new and existing users. It encouraged users to explore more types of content and didn't impact retention, engagement or consumption time metrics. New users engaged more with the navigation menu in their first sessions than they did with the hamburger menu.
You can download Spotify Music from the App Store for free.