While the Imikimi photo editor offers many photo editing features in an easy-to-use format, it does not offer the wide array of professional photo editing and design features of Adobe's Photoshop. For many users though, Imikimi provides the basic features desired.
Imikimi's features are primarily related to adding borders, frames and designs to a photo. Photoshop, on the other hand, has tools that professional graphic designers require that the average user might not need. Additionally, because Imikimi is designed for widespread personal use, rather than commercial use, the learning curve is fairly small. Photoshop, on the other hand, is a complex tool that can be used for commercial graphic design, and as such has a much greater learning curve for users.