Fresnel Reach

Every coastline keeps a memory of light. Fresnel Reach gathers the long, salt-worn story of lighthouses — from the fire-baskets of the ancient harbours to the great glass beehives that Augustin Fresnel taught to bend a flame into a beam that could be seen for leagues. Move through it slowly, in soft dusk-blue rooms where each beacon has its own voice, its own rhythm of dark and light, its own keepers who climbed the stair at nightfall so ships would not be lost.

The app is built as a quiet almanac of the coast. Browse illustrated readings on towers, lenses, keepers and famous lights, sorted by era and gathered into collections you can mark as favourites. Test what stays with you through calm, unhurried quizzes that grow a mastery ring for every era. And with the Signature Flash room, let your phone's own lamp breathe the true light characteristic of a chosen beacon — its measured flashes and occultations — a small beam of history held in your hand, answered by a gentle pulse each time it turns.