Pixlr is a company that offers a great collection of image editing tools for iOS, Android, and Chrome. I’ve been using Pixlr on my Android phone for the last 18 months. Recently, I installed Pixlr Express Plus on my iPad.
Pixlr Express Plus for iPad is a free app that provides intuitive tools for cropping your pictures, fixing the light balance, removing red eyes, and changing the contrast of your pictures. Pixlr Express Plus also provides some Instagram-like filters that you can apply to your images.
I recommend Pixlr’s tools because they don’t require you to create an account. And if your school uses a mix of iPads, laptops, and Android devices Pixlr has something for everyone.