It’s tempting to rely on menu controls in order to simplify mobile interface designs —especially on small screens. But hiding critical parts of an application behind these kinds of menus could negatively impact usage.
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When critical parts of an application are made more visible, usage of them can increase. Facebook found that not only did engagement go up when they moved from a “hamburger” menu to a bottom tab bar in their iOS app, but several other important metrics went up as well.