Early licenses are handled by email while online checkout is prepared. Request the 14-day light-theme trial from the Download page.
M ModbusSimHVAC compressor behavior simulator
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Pricing

Start with a trial, then choose the license that fits the project.

ModbusSim licensing is handled by request during early access. Start with a machine-bound 14-day trial in light theme, then request the engineering or custom project license that matches the work.

See Trial Flow Contact Sales
License Options

Choose the path that matches the evaluation stage.

Online checkout is not required for the first public release. License requests can be reviewed by email, and the activation key can be generated for the approved Machine ID.

Entry path

Evaluation

14 days

Use this tier for guided trial access, early validation, or limited-duration onboarding in the light theme.

  • Machine-bound 14-day access for first connections and product fit validation
  • Light theme only during the trial period
  • Documentation access
  • Email-based onboarding
  • Good fit before a paid engineering plan with full personalization
Request Trial
Main paid tier

Engineering

By request

Best fit for a small engineering team that wants day-to-day controller validation without a large procurement process.

  • Compressor Behavior Model workflow
  • System Integration and release or migration checks
  • Documentation and report workflow
  • Dark theme and full personalization controls
  • Email support and upgrade path
Request Plan Details
Higher-value engagement

Custom Project

Project quote

Use this for feature tailoring, project-specific tuning, onboarding help, or direct customization work.

  • Project-specific configuration and rollout help
  • Deeper training or workflow alignment
  • Custom feature or model extension discussion
  • Commercial scope handled case by case
Discuss Custom Scope

Online checkout status

Online checkout is planned with Paddle.com as the merchant of record, but early access can start with reviewed email requests. This keeps installation, Machine ID collection, and license generation simple while the trial videos and purchase flow are completed.

  • Trial requests start on the Download page.
  • The standard 14-day trial is light-theme only.
  • Paid licenses can use the same Machine ID collected during first launch.
  • Feature access is confirmed before the activation key is generated.
  • Before any paid checkout, review the terms, privacy notice, and refund and return policy.
Terms Privacy Refund Policy

Suggested feature grouping

Draft the product packaging around workflow value, not around too many tiny switches.

EvaluationFirst connection, documentation access, product fit validation, and light-theme-only trial use.
EngineeringDay-to-day testing, behavior model use, monitoring, reports, dark theme, and full personalization.
Custom ProjectCustomization, onboarding, direct support, or higher-value project work.
Sales Flow

Keep the customer path clear.

The page sequence should stay simple: understand product, review documentation, confirm pricing, request trial or purchase, then move to download and support.

Review Product Open Download Page Open Support Page