Smartphone users, you now have more app choices than ever to satisfy your outdoor interests. But which ones are worth your while? Here's a quick look at some of the leading apps. (If you don't yet have a smartphone, a fair warning: The coolness of these apps may convince you to pony up for one.)
Of course, with all of these apps, keep in mind that smartphones depend on cell towers and batteries. While they can be fun and useful, you never want to rely on one in the backcountry. After all, nothing beats your go-to gear and satellite-based GPS technology.
Survival Pocket Reference is a reference for first-aid techniques, creating outdoor shelters, building fires and more (based on a U.S. military survival guide, no less). While it's chock-full of juicy outdoor survival skills and tips, this Apple app reads more like an e-book than the über-interactive app format we're used to. You'll get a great education (possibly more than you really need to be prepared for the outdoors), but you'll need to sift through the table of contents to find what you need.
Price: $0.99
WeatherBug offers live local weather through the largest network of U.S. weather stations. This Apple/Android/BlackBerry app is a whiz at finding my nearest station quickly and shares an easy-to-read forecast. I especially like how its video feature offers me a real-time visual of sky status.
Price: Free
Flashlight lights your smartphone screen in a customized color and brightness to match your outdoor nighttime activity (e.g., the red flashlight is perfect lighting for stargazing). Thanks to my large iPhone screen, this Apple app seemed to distribute light more evenly and with a wider scope than my small lightbulb flashlight.
Price: Free
MyNature makes Apple app field guides for identifying trees and animal tracks. I found Tree Guide's clear, simple pictures made tree labeling a cinch. The app even did the hard part for me—leading to the tree result with a fun, no-brainer quiz.
Price: $6.99
Audubon Birds is a nifty handbook for identifying North American birds. I liked that this Apple/Android app lets beginners like me identify birds simply by shape. Plus, verifying birdcalls against the app's recording library is oh-so-satisfying. (Psst, I liked this app's format so much that I added Audubon Wildflowers to my next hike and tracked wildflower sightings with the built-in GPS. Looking forward to comparing my flower trail in later seasons this year!)
Prices: $14.99 (Birds), $9.99 (Wildflowers)
TrailBehind shares user-generated trail maps with info about trails, summits, streams and park landmarks. My favorite aspect of this Apple/Android app is its recommendations for the best hiking spots based on my location.
Price: $0.99
Topo Maps offers GPS-accurate topography maps of the U.S., Canada and beyond for bikers, campers, hikers, etc. I liked that the Apple guide let me see what kind of terrain was ahead of me on my hike, but I found myself wishing that its offline maps were a little crisper visually.
Price: $7.99
Moon Atlas is a great Apple app to let you explore the moon's phases and surface in 3D, according to your location. This app has a very responsive scroll and zoom, so it was easy to scan the lunar globe for craters and shadows that have always puzzled me.
Price: $5.99
Starmap is one of Apple's easiest-to-use star-finder apps. It can identify constellations in seconds, but I found myself wishing for more information on stars and planets.
Price: $11.99
This is the first post in a series about handy smartphone apps for outdoor use. Are apps a part of your outdoor adventures, too? Join the conversation and tell us your favorites.


Ratings and Comments
Francesca,
Please be sure to check the Chimani apps for National Parks. One user of my apps just alerted me to the article, and stated the following:
"Wow. Hard to believe this article didn't contain the @Chimani apps for National Parks."
To learn more about the apps, go to: www.chimani.com.
The Yellowstone app is currently free until July 17 (http://news.yahoo.com/chimani-yellowstone-guide-iphone-free-until-july-17-080405264.html)