John Saito, a writer at Dropbox, recently posted on Medium a great article describing the reasons people and apps use title case and sentence case. If you haven't tried our title capitalization tool yet, we allow you to do both. John argues that while title case creates a nice symmetrical pattern for short sentences, sentence case creates a more casual and inviting visual appearances, something modern brands, such as Dropbox, will want to use. Additionally, he argues that Title Case actually makes picking out proper nouns in short sentences extremely difficult. In the example he gives below, he argues that users may not realize the "Calendar" app refers to a named app or just any generic calendar app. Source: Medium Another interesting fact John talks about is that Google and Apple use different case styles: If you’re an Apple user, you’ll notice a lot of title case throughout their products. That’s because Apple’s design guidelines recommend title case for many UI elements, including alert titles, menu items, and buttons. If you’re a Google user, you’ll see a lot more sentence case throughout their products. And that’s because Google’s design guidelines recommend sentence case for almost everything. Source: Medium To read the full article, head over to Medium.