techlogia

Windows

Native Windows App

from€5,900

Native Windows app in C# / .NET 8 with WinUI 3 or WPF — perfect system integration for enterprise and power users.

What you get

Package contents

  • C# / .NET 8 with WinUI 3 (modern, Fluent Design) or WPF (classic, broadly compatible)
  • Up to 8 main views
  • Native Windows APIs: Registry, Services, COM, P/Invoke
  • Background services (Windows Service or Scheduled Task)
  • MSIX package for Microsoft Store + traditional .exe installer
  • Code signing preparation (you provide certificate)
  • Auto-update via Squirrel or MSIX update mechanism
  • Performance-optimized: small .exe, fast cold start
  • File system, printer, USB, Bluetooth, WMI access
  • Local data storage: SQLite, LiteDB or SQL Server Express
  • Settings UI with profiles
  • Logging via Serilog (file + EventLog)
  • Crash reports (local or to your server)
  • Source code + build instructions (Visual Studio 2022 / VS Code)
  • Microsoft Store listing optional (submission by you or as add-on 590 EUR)

Communicated transparently

What's not included

  • ×Microsoft EV code signing certificate (~300 EUR/year — optional)
  • ×Microsoft Partner Center / Store Developer Account (~20 EUR one-time)
  • ×macOS or Linux versions (see Cross-Platform 4900 EUR)
  • ×Windows XP/7 support (.NET 8 is Win 10/11)
  • ×ARM64 native build (standard is x64; ARM64 as add-on ~590 EUR)
  • ×Driver development (kernel-mode code) — separate from 4900 EUR
  • ×Active Directory / Group Policy integration (separate from 1490 EUR)

These items can be requested separately — we make an individual offer.

Security & production-readiness

Security comes standard.

What cheap providers skip is standard with us — also in this package:

  • HTTPS / SSL with auto-renewal
  • Firewall, Fail2Ban & rate-limiting
  • Dependency scan for known CVEs
  • Backup strategy in place
  • No secrets ever in the repository
  • GDPR-compliant cookie banner (for EU clients)
  • Code review by an experienced engineer before go-live
  • 30 days post-launch support (bugfixes included)

FAQ

What clients usually ask

Why not cross-platform (Tauri/Flutter)?+

If you only need Windows, native is faster (cold start, RAM, native UI feel). For multi-platform: Cross-Platform 4900 EUR is cheaper.

WinUI 3 or WPF — which do we use?+

WinUI 3 for modern UI (Fluent Design, dark mode, Win 11 look). WPF if you still need to support Win 10 / older hardware.

What does the EV certificate cost?+

~300 EUR/year (e.g. from Sectigo / DigiCert). Without EV: Windows shows SmartScreen warning on first download.

Microsoft Store needed?+

Not required — direct download from your website works. Store listing only useful if you want reach via store.

Can I support ARM64 later?+

Yes, ARM64 build as add-on 590 EUR. .NET 8 supports ARM64 natively — we just build an additional target.

Which database do you recommend?+

SQLite for single user. LiteDB for embedded NoSQL. SQL Server Express if you want multi-user server DB later.

Important note

The price shown is a non-binding estimate. Actual effort is determined individually after a free briefing call and provided in writing.

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Let's bring your idea to life together. We're happy to advise you with no obligation.

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