BatLib vs LicheN

The BatLib app plays the different ultrasonic calls of most European bats, transformed into the audible range using the heterodyne mixer method. This is particularly useful for comparing directly with the output of the BATSCANNER device to help determine the species. 1. Enter the frequency that your BATSCANNER displays to filter the species 2. Listen to the typical bat call sequences 3. Compare the sound with what you hear from your BATSCANNER 4. Sounds similar? Read additional information about the bat species, such as acoustic characteristics, size, habitat, photos, etc. Further information about our bat products: www.batscanner.ch

Curious about nitrogen pollution in your area? This app helps you assess local nitrogen air quality using lichens—good indicators of nitrogen pollution levels in the atmosphere. Knowing nitrogen pollution levels can tell us a lot about the health of your local environment. It provides: • A simple lichen ID photo guide for nitrogen-sensitive and tolerant species • Easy tools for recording lichens on trees and branches • A step-by-step field guide for conducting surveys • An automatic nitrogen air quality index score (NAQI) • Clear pollution zone results: Clean, At Risk, Nitrogen Polluted, or Very Polluted Use nature to understand your air quality and environment!