Zero Recurring SaaS Lock-In

One-Time, Perpetual Licensing

Full features across every edition. Cryptographically signed, hardware-bound, and operating 100% air-gapped on your own infrastructure.

Starter Edition

Small Teams

Ideal for workshops, agile manufacturing cells, or boutique trading operations.

Up to 5 Users One-time payment · Lifetime license

✓ Full Runtime Schema Modeler
✓ Reactive ECA Rule Engine
✓ Unified Workspace (Chat, Mail, BI)
✓ 100% Self-Hosted on PostgreSQL
✓ Air-Gapped RSA-SHA256 Licensing
✓ Standard Community Updates

Purchase License

Professional Edition

Designed for growing enterprises digitalizing multi-department workflows.

Up to 20 Users One-time payment · Lifetime license

✓ Everything in Starter
✓ Temporal Long-Running Workflows
✓ Native Dual-Locale (EN & ZH)
✓ Multidimensional 3D OLAP Cube
✓ Automated Database Backup SOP
✓ Direct Email Support with Creator

Purchase License

Business Edition

Scale Operations

Engineered for high-volume factories, supply chain hubs, and larger teams.

Up to 50 Users One-time payment · Lifetime license

✓ Everything in Professional
✓ High-Concurrency Cluster Readiness
✓ Advanced Audit Logs & Role Matrices
✓ Priority Issue Resolution with Creator
✓ Custom Domain & SSL Whitelabeling
✓ Migration Assistance Included

Purchase License

Bespoke Engineering Tier

Need Unlimited Seats, Custom Workflows, or Dedicated Advisory?

Partner directly with founder and systems architect Joshua Zhang. We design custom business entities, build specialized shop-floor hardware gateways, and perform tailored legacy data migrations with fast turnaround.

✓ Unlimited seat sizing ✓ Tailored ERP & device integrations ✓ Source code escrow availability

Book Architect Consultation →

Trial-to-Production Lifecycle: Zero Re-Installation

How Trial Promotes to Production in 4 Simple Steps

The Trial release and Production release share the exact same full-feature binary. Everything you build during your 14-day evaluation promotes in-place the moment you apply your license.

No Re-Download · Zero-Downtime Reload · Email Backup

STEP 01

Evaluate

Try Online or Self-Host 14 Days

Explore the full-permission online sandbox (including App Builder Studio), or run the standard release with no license for an automatic 14-day, 5-seat evaluation.

Copy your host fingerprint MCH-XXXX in 1 click from Admin → License UI

Start Evaluation

STEP 02

Purchase

Purchase Plan & Get Activation Code

Select your seat tier on the Pricing page (online checkout or enterprise invoice) and immediately receive your Activation Code via email.

Instant order entitlement recorded in our fulfillment ledger

View Pricing

STEP 03

Bind & Sign

Bind Machine ID & Generate License

Enter your Activation Code, Legal Company Name, and Machine ID (MCH-XXXX) in the Activation Portal to sign your hardware-bound certificate.

Instant browser download + automatic email backup delivery

Open Activation Portal

STEP 04

Hot-Reload

1-Click In-Place Hot Reload

Upload or paste zkdigital.license in your running instance's /admin/license page. Unlocks full seats immediately with zero reinstall and 100% data preserved!

No re-download · Zero service restart · 100% trial work kept

See Hot-Reload Guide

1. Where do I send my Machine ID?

Copy MCH-XXXX from your instance's Admin → License page and submit it directly in our self-service Activation Portal.

2. Where do I receive & track my license?

Your browser downloads zkdigital.license immediately AND we email a backup copy. You can also look up and re-download it anytime in the Portal.

3. Do I need to re-download after paying?

Never! Even if your 14-day trial expired into read-only mode, simply upload zkdigital.license in /admin/license to unlock immediately.

After purchase you receive an activation code. Activate it here to download your host-bound `.license` file.