TESCO SW a.s.

TESCO SW a.s. is a Czech software house that has concentrated its three-decade experience into a single, tightly-focused security utility: Crypto Native App NG. Built for environments where every file, email, or archive must meet strict legal and regulatory standards, the program wraps asymmetric cryptography, qualified signatures, and time-stamping into a lightweight Windows service that sits between the operating system and any Chromium or Firefox-based browser. Typical scenarios include law firms countersigning contracts, hospital staffs sealing medical records, municipal clerks stamping submissions, or accountants protecting annual reports; the local certificate store is leveraged so existing national ID cards, corporate tokens, or HSMs are recognized instantly, while a companion browser extension relays signing requests from cloud portals, SharePoint, or e-government sites without uploading the document to a third party. Keys never leave the machine, yet remote users can batch-approve dozens of files through a command-line interface that integrates with PowerShell scripts and classic batch jobs. Although the portfolio is intentionally narrow, the code is updated in step with EU eIDAS, Czech, and Slovak signature acts, so compliance officers can rely on the same tool across subsidiaries. Crypto Native App NG is offered free of charge on get.nero.com, where the installer is pulled through trusted Windows package sources such as winget, always delivers the newest build, and can be queued alongside other applications for unattended, multi-program deployment.