Leps by Fieldguide is an iPhone application developed by Change Theory Corp. It falls under the category of Education & Reference and is available for free on the App Store. Leps is a dedicated ID assistant and community for lep lovers, focusing on Lepidoptera, which includes moths and butterflies.

With Leps, users can easily identify different species of moths and butterflies. The app analyzes photos of these insects and suggests possible identifications, which can then be verified by the Fieldguide community. This makes it a valuable tool for enthusiasts and researchers alike.

In addition to identification, Leps allows users to record their observations. The app organizes these observations into a dynamic checklist, which automatically updates when there are changes in taxonomic treatments. This ensures that users have up-to-date information and can contribute to the collective knowledge of Lepidoptera.

Leps also provides a platform for users to showcase their collection of lep photos. By sharing collection data, users can contribute to a better understanding of Lepidoptera morphology, phenology, and distribution.

Furthermore, Leps allows users to connect with other lep enthusiasts. Users can follow people who share their curiosity and interests, creating a community of like-minded individuals.

Overall, Leps by Fieldguide is a comprehensive and user-friendly app for lep lovers. It offers a range of features, from identification assistance to data recording and community engagement. Whether you're a beginner or an experienced lepidopterist, Leps is a valuable tool to enhance your knowledge and connect with fellow enthusiasts.