ZKPassport

ZKPassport is a free iPhone app that lets users verify their identity online without handing over full copies of their passports or other personal details. According to the listing, users scan a supported NFC-enabled passport, national ID or residence permit with their camera, then tap the phone to read the chip, and share only the information a website needs. The app says all documents and personal data stay on the phone and are never uploaded, and that its face matching checks that the ID holder is the person pictured. Examples given include proving someone is over 18 without revealing their birthdate. The listing names Obsidion Labs Limited as the seller and gives the app size as 126.6 MB.