1. Alltrails
Platforms: iOS, Android
Price: Free
Covering over 50,000 Canadian and US trails and with 3.5 million downloads, AllTrails is one of the most popular hiking apps available. The free version allows you to create your own trails with GPS tracking, photos and text, and save or share them with others. The $50 a year membership gives you access to the pro version, the advantages of a partnership with National Geographic Maps, and the ability to print and edit maps.