Lithoscout

Lithoscout is a free field companion for everyone who looks for fossils, rocks and minerals, anywhere in the world. Keep a proper logbook of your finds, check whether a beach or quarry is worth a visit today, and work out what you picked up. No account, no ads, no subscriptions. Your finds and their locations stay on your phone. FIND LOGBOOK • Sites with a short code, type (beach, quarry, cliff, river, field) and location, private by default • Finds with kind, group, name, layer or formation, size, condition, notes, photos, position and date • Catalog numbers made from the site code, like CHR-0001, that never change • Outings: log a day out, who came along and what you found • Where each specimen is stored at home: a box, drawer or shelf • Your collection in numbers, with milestones like your first ammonite • A private map of your sites and finds LABELS, REPORTS AND BACKUPS • Print specimen labels as a PDF sheet (A4 or Letter), with an optional QR code that opens the find • Share a single find as a PDF report with its photos • Export everything as a zip with CSV, JSON and photos, or let the app back up to a folder you choose once a month • Locations are left out of labels, reports and exports unless you switch them on SEARCH CONDITIONS • Weather, rain, wind, waves and the tide for each site, with a simple verdict: worth going or not • Best time to search: the falling tide in daylight, when the sea has just washed new material out • Safety notes for cliffs and tides, and your own collecting rules per site • Rock layers under a site and fossils recorded nearby, from open geology databases IDENTIFY • A tap-through key that gets you to the right group: 13 fossil groups, the three rock families and 15 common minerals • Works fully offline and fills in the group of your find • When the key can't tell, it suggests who to ask PRIVATE BY DESIGN • The logbook works offline and is never uploaded anywhere • Online extras (map background, conditions, geology) stay off until you agree, and only send a position rounded to about a kilometre • No tracking, no analytics, no cloud backup of your locations Light and Dark mode. In English and Dutch. Weather and sea data: Open-Meteo.com (CC BY 4.0). Geology: Macrostrat (CC BY 4.0). Fossil records: Paleobiology Database (CC BY 4.0). Map data © OpenStreetMap contributors. The tide and conditions are model forecasts and not for navigation. Always check local tide tables, keep away from cliff bases and follow the rules of each site.