The 20 most useful free iPhone apps, according to Reddit

Redditors are providing an online public service by recommending extremely helpful iOS apps that are absolutely free. There are adventure apps, sleep apps, education apps, sleep apps, mental health apps, food apps, sleeeep apppppps. Yeah, you get the point. 

Check out our compilation of the best free iPhone apps that Redditors love.

1AllTrails

AllTrails is a handy guide for adventurers looking for running, hiking, and biking trails. It offers details about the trails — more than 100,000 all over the world! — including difficulty level, elevation, and length, according to Redditor Wookiepuke. App users can also post pictures of trails and leave comments and reviews for other users. And, yes, it tells you if the trails are dog or kid-friendly, too. Read more...