SAN FRANCISCO — Teddy Winthrop is forgetful, a trait he inherited from his dad.
His father implored him to get a Day-Timer, an executive planner that was wildly popular in the ’80s. But the young entrepreneur dismissed the idea — his personal organizer was his iPhone. And that’s when it hit him: The world needed a Day-Timer for the iPhone.
So he started a company, Edward Field, selling beautifully made leather iPhone wallet cases. It’s going well so far, thanks partly to experience he gained working for his brother, the brains behind American Giant, manufacturer of the “world’s greatest hoodie.”

Apple has strict App Store guidelines, and every title is tested by a human before being approved. In comparison, Google is happy to let most things fly — so long as it’s not offensive or harmful — which gives us access to things like emulators and file downloaders that aren’t available on other platforms.