What's a well-designed iPhone app that could help me identify insects I come across while doing field research or just walking around campus?

Picture Insect offers an interesting implementation of image recognition for identifying insects. I find it intellectually satisfying that it can quickly analyze a photograph and provide a likely identification, along with detailed information. This is particularly helpful when I'm out in the field and need to quickly document insect species. From an academic perspective, I can see my students using this to enhance their understanding of entomology. The algorithm is surprisingly elegant, and the cross-platform compatibility with iOS devices makes it easily accessible. I appreciate the novel approach to an old problem – accurately identifying insects without needing to lug around heavy field guides. It's also helpful for managing citations when preparing research papers.