Antiks is an all-in-one web application for antique dealers, second-hand dealers, art galleries, consignment shops and gold buyers in France. A single entry at the time of purchase feeds everything else: a digital police register (livre de police) filled in from a phone, time-stamped and tamper-proof; e-invoicing with the French margin VAT scheme through an integrated approved platform (SuperPDP), ready for the 2026-2027 French e-invoicing reform; inventory management for one-of-a-kind items; multichannel selling on 12 marketplaces (Selency, Proantic, eBay, Etsy, 1stDibs...) where AI fills in the listing from a photo, a short description and the dimensions, with a price per marketplace and automatic removal once sold; a precious metals buying module; and automatic transfer of invoices, register and VAT data to the accountant. Works on phone, tablet and computer, nothing to install. 14-day free trial.