What are some alternatives?
When comparing GIMP and PicsArt, you can also consider the following products
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
Instagram - Instagram is a mobile, desktop, and Internet-based photo-sharing application and service that allows users to share pictures and videos either publicly, or privately to pre-approved followers.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
Adobe Photoshop Express - Easily edit and share your photos in no time!