Biotte is a free educational application designed for iPhone users, focusing on the study of microorganisms related to water treatment. It features an extensive microbial encyclopedia that is accessible to children and students, while also offering in-depth information suitable for professionals. Users can explore approximately 50 types of microorganisms, complete with images, illustrations, and detailed descriptions of their characteristics and habitats.

The app includes a robust recording and diagnostic functionality, allowing users to maintain a microbial counter with up to five series of counts. Users can edit their counting lists and visualize the data through bar graphs. Additionally, Biotte provides simplified diagnostic results based on the recorded counts and supports CSV output for further analysis. The application is designed to be intuitive, with keyword search options and customizable settings for optimal user experience.