LichensBook

LichensBook is an offline field guide for learning common lichens by growth form, substrate, color, and field marks. WHAT IS INSIDE - A curated lichen species library with common names, scientific names, growth forms, habitats, substrates, field cues, and look-alike notes - Search and category filters for crustose, foliose, fruticose, squamulose, gelatinous, and powdery lichens - A Field key for starting from what you can observe on bark, stone, soil, or shaded surfaces - On-device field notes for saving local observations - Observation coach for morphology questions and look-alike checks PRIVACY - Field notes stay on device - No login, no account, no email collection, and no analytics SDKs - Coach requests send only the selected lichen name, scientific name, category, and the user's question PRO ($4.99/month, $19.99/year) - Unlimited observation coach questions - Continued access to all Pro guidance features LichensBook is an educational nature reference. It does not provide medical, legal, safety-critical, or laboratory identification advice. Terms of Use (EULA): https://lichensbook.uptrail.ai/terms Privacy Policy: https://lichensbook.uptrail.ai/privacy