Now that summer is in full swing, you have permission to use your smartphone for things other than checking e-mail and calling clients. Here are three apps to get you started.

FreeCaddie Pro
This app displays the distances to greens, bunkers, and hazards at some 23,000 golf courses worldwide. You can enter your scores and statistics as you play, then log on to FreeCaddie.com to analyze them. The app works on a variety of phones, including iPhones, BlackBerrys, and Android models. Cost: $9.95

Steep and Cheap
Every day, this iPhone app offers dozens of deals on outdoor apparel, including tents and backpacks. A recent offer featured a pair of Sole Sport sandals for $29.99, a 55 percent discount off the retail price. You can check the app for deals during the day or have push notifications sent to your phone. Cost: Free

Oh, Ranger! ParkFinder
After you enter your Zip code or city and select an activity—bird watching, say, or boating—this app will direct you to nearby national parks, state parks, or national forests that suit your needs. The app, which works on iPads and iPhones, also provides directions, weather, and lodging suggestions. Cost: Free