What are some apps I can use to take photos or edit them?

I like to take pictures and post them on my photography account on Instagram but I don't have one of those fancy canon or Nikon cameras so i'm trying to find some apps on my iphone

These are one of the best apps for phone.
1.PicsArt
2.Picsay pro
3.Pixlr express
4.Adobe photoshop express
5.Camera 360 ultimate

Apps don't take photos, cameras do.

Learn how to use your camera properly and you won't have to add silly instracrap type effects.

Photos can be taken with an inexpensive cell camera and posted online.
To edit photos you would need a program like photoshop or the windows photo viewer.