Q platby

Q platby develops open-source payment software. Its Linky app (web, Android and CLI) manages contacts, sends private messages over Nostr and handles payments via Lightning and Cashu, with data kept on the device and synced encrypted between devices. Its Payky app is a point-of-sale system that accepts QR-code bank transfers, cash and bitcoin over Lightning, works offline and keeps data with the merchant.

The customers named on the website are individual users of Linky and small merchants in the Czech and Slovak markets using Payky. The company publishes all its projects under free licences (0BSD for Linky, MIT for Payky) and states that payments go directly from payer to payee without intermediaries. The website does not describe a revenue model.

The registry lists Q platby s.r.o. as founded on 30 September 2026, with its registered headquarters in Košťálov, Czech Republic. The website describes the company as a small Czech firm and does not mention other offices or open positions.

Product: Linky (contacts, Nostr messaging, Lightning and Cashu payments) and Payky (point-of-sale app for QR bank transfer, cash and Lightning payments).