Apps

Two apps I built end to end: a scanner that runs a shop, and a VPN client that keeps working when routes are blocked.

Quick Lens

My first app. A QR and barcode scanner that is also a pocket cash register, an inventory book and a 2FA authenticator.

  • Scans every code1D and 2D, even in low light.
  • Makes codesWi-Fi, links, vCard, email, text.
  • Industry formatsGS1 DataMatrix, pharma, AAMVA licences, VIN, IMEI.
  • Runs a shopAdd stock by scanning, track history, log sales.
  • Shows profitRevenue and profit charts.
  • Prints receiptsBluetooth thermal printers, custom signature.
  • ExportsPDF and CSV reports.
  • Guards loginsTOTP codes for Google, Instagram, Facebook.
  • Writes NFC tagsOne tap.
  • Shares nearbyNo internet needed.
  • Backs upGoogle Drive sync.
  • LocksFingerprint or face.
  • Checks linksURL safety scan before opening.

Z VPN

A VPN and proxy client for Android, Linux, Windows and macOS. When one route is blocked, the next engine is already installed.

One tap tests every server and moves you to the fastest. Engines can be chained, per-app routing is built in, and configs import from links, subscriptions, QR codes and files.

Still in development. The backend that keeps the server list in sync is public.

XrayVLESS with Reality, VMess, Trojan, Shadowsocks, Hysteria2, WireGuard
sing-boxTUIC, Naive, AnyTLS, ShadowTLS and OpenVPN files
Psiphon and TorNetworks that need no server of your own, with bridges for hard cases
DNS tunnelsFor networks that let little more than DNS through
OpenConnect, IKEv2, SSHFor servers you already run