Download GorkyCAD Pro
Desktop version for Windows and Android
Windows (.exe)
· ~95 MB
Desktop application for Windows 10/11. Works offline, all data stays on your computer.
Download for WindowsYour antivirus may warn about an unrecognized publisher — this is normal. Click "Run anyway".
Android (.apk)
~45 MB · Expected release: Q3 2026
Mobile version for tablets and smartphones. View and edit projects on the go.
Coming soonLinux (.AppImage)
No date yet
Linux version — planned. Vote on the Roadmap.
Vote on RoadmapWeb version
No installation
Full app in the browser. Launches instantly, always the latest version.
Open appLicense Key System
How it works — from purchase to activation
GorkyCAD Pro uses a classic license key system with online verification. The full architecture is described below.
Purchase License
User selects a plan (Free/Pro/Enterprise) on the website. After payment via Stripe/Paddle, the system generates a unique key in GCAD-XXXX-XXXX-XXXX format and sends it via email.
Activate Key
User enters the key in the «Activation» window inside the app. The app sends a request to api.gorkycad.pro/v1/activate with the key + hardware-id (SHA-256 hash of CPU+MB+MAC).
Server Validation
Server checks: (a) key exists, (b) not expired, (c) activation limit not exceeded (3 for Pro, 10 for Enterprise). On success — returns a JWT access token with 30-day lifetime.
Periodic Refresh
The app silently refreshes the token every 24 hours via /v1/refresh. If the server is unreachable for more than 72 hours — the app continues working offline with the last valid token.
Deactivation
In the web dashboard, the user can deactivate a device — freeing an activation slot. License transfer to a new PC is also supported.
Key Format
4 blocks × 4 chars (digits + uppercase letters, excluding O/0/I/1/L for readability)
GCAD-A7X9-K2MN-Q4R8 Limits by Tier
| Tier | Activations | Refresh | Offline | Support |
|---|---|---|---|---|
| Free | 1 device | 72 hours | 7 days | Forum |
| Pro | 3 devices | 24 hours | 30 days | Email + Telegram |
| Enterprise | 10+ devices | 1 hour | 90 days | Dedicated manager + SLA |
Key System FAQ
What if I have no internet?
The app works offline for 7/30/90 days (depending on tier) since the last successful token check.
Can I use the key on two PCs simultaneously?
Yes — up to 3 devices on the Pro plan. Each device occupies 1 activation slot.
Reinstalled Windows — key lost?
Go to dashboard → «My Devices» → deactivate old PC → activate new one. Slots are restored.
How are keys protected from cracking?
Server-side validation (not local), hardware-id binding, 5 attempts/hour rate-limit, Ed25519-signed JWT tokens.
What is stored on the server about my PC?
Only a one-way hash (SHA-256) of CPU ID + motherboard + MAC. Original data cannot be recovered.
Ready to start?
Download the Free version. No registration, no expiration.