Mountain Project is an app that every rock climbing enthusiast needs to have on their phone. This app is a comprehensive database of rock climbing areas and routes that works offline, so you don't need to worry about having a cell signal. With high-resolution photos, it syncs with your existing MountainProject.com account, and you can read and post to the Mountain Project Forum.

The app features browsing areas, routes, photos, ticks, and comments at the crag or on the rock. You can download your local areas, trip destinations, or all 75,000+ routes worldwide, set bookmarks for your favorite routes and areas, and download high-res photos, one at a time or for a whole area. You can even sync your ticks, star ratings, and to-do's with your MP account. The app also allows you to search for routes and areas, see maps and directions to areas, and stay up to date with weekly data updates – you always have the freshest beta.

Mountain Project is a free app that is free of advertising too. Everything you need to plan your next climb, nothing you don't.