If you own a smartphone, you own a bunch of apps. But do you own the right ones?
There are more than a million at your disposal in the Apple and Android app stores. With so many choices, finding that perfect calendar app can be as tricky as getting a high score on Flappy Bird. (Oops, that once-hot app has already come and gone.)
There's a lot of trial and error: 20 percent of apps are used only once, according to Localytics, a Boston-based app analytics firm. Want a new game? An app to boost your productivity?
"Your best bet is to download the top five and try them all," said Henry Cipolla of Localytics. "You never know what works for you vs. someone else."
That tactic could explain why the Apple and Google Play stores boast tens of billions of app downloads. That's right, billions. In this frenzy, each user is looking for something a little different — and going about it in a different way. What you put on your smartphone, like whatever is stuffed in your purse or wallet, says a lot about you.
We asked five smartphone users — from a WNBA superstar to a 15-year-old high school student — to give us a peek at their homescreens and share their tricks for finding the best apps.
THE TECH TASKMASTER: Ryan Carlson

Bio: 36, St. Paul, "Tech Evangelist" at the Nerdery.
Carries: iPhone 5s with nearly 100 apps.
Can't live without: Evernote for staying organized, Waze for travel, Sleep Cycle for getting the best rest, One Password for keeping track of the digital keys, Sunrise for calendars and Simple for banking. "Mobile phones and apps really need to be about context," he said. "If they can help us gain some cognitive superpower, all the better."