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