4 New Apps to Help You Manage Your InboxEmail is useful but often unmanageable, which is why a new slate of apps are offering to help. We test them.

Andrew Wyatt receives 300 to 400 emails per day. Some are from investors and partners ofCALA, the digital fashion branding platform he cofounded. Others are from potential customers. He doesn't want to miss important notes but can't spend all day searching for them. "I tried everyGmailhack trying to get to inbox zero," he says. "No matter what, it was a big mess."

That's why Wyatt was willing to spend a whopping $30 per month on a solution: It's calledSuperhuman, a new and much-hyped email app that has raised $33 million in funding. And it's not alone; Superhuman is joined by a crop of new email apps, all vying to be the go-to solution for entrepreneurs with untamed inboxes.