In-app tutorials are easy to follow, and challenges prompt users to submit their creations based on a specific type of edit or a theme winners are selected by community vote. You can use Remix Chat to share and collaboratively edit photos with the 150 million monthly users of PicsArt, or only with your friends. The full-featured camera module includes pre-capture effects and photo tools. In addition, you can quickly select or create fun stickers, combine your pictures into highly customizable collages, add artistic text and share. It provides lots of creative control, excellent image-editing tools and a large variety of attractive filters. PicsArt is our top pick of the best photo editing apps, because it's fun, easy to use, yet covers just about all the bases for consumer mobile photography. PicsArt (Image credit: Future/Sally Grotta)