Download
The Windows software is available to registered shops. Register your shop (free trial credits included) or log in on the home page, then download it from your dashboard. When you open the software, sign in with the same mobile number and password - your shop name, logo, GSTIN and credits come from that account.
qcok-qc for Windows
Windows 10/11, 64-bit. Download link is on your dashboard after you log in.
QCOK Diagnostics (Android companion app)
Installed on the phone being tested, only for the duration of the QC session - it uninstalls itself when the session is finalised. Enable "install unknown apps" to sideload it.
See it before you install it
A real certificate generated from a simulated/demo session (clearly watermarked as simulated - not a real phone).
The matching 50×30mm label with a QR code to the verification page.
Questions about setup? See the FAQ or How it works pages.