CASTR Application Tool

Probabilistic Risk-Based Estimating — Improving the reliability of project estimates one analysis at a time

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How to Get Your License

1

Download & Install

Download the free 90-day trial by clicking on the CASTR.zip file from GitHub. The trial includes a sample project plus 2 additional projects you can create. Install and run it to view your unique Machine ID.

2

Purchase a License

Enter your Machine ID and email below, then complete payment securely through Stripe.

3

Receive Your License

After payment is confirmed, a license key tied to your machine will be emailed to you.

4

Staying Up to Date

CASTR notifies you in-app when a new release is available and when your upgrade coverage is nearing expiry. You can keep running your current version forever, or renew for TBD to unlock the latest build.

New License

TBD
One-time payment • Perpetual use
  • Full Monte Carlo simulation engine
  • Unlimited cost & schedule risk analyses
  • Distribution curves & tornado diagrams
  • 12 months of free upgrades to new releases
  • Keep running your licensed version forever
  • Email support
Where do I find my Machine ID? Open the CASTR demo application. Your Machine ID is displayed on the startup screen under "License Information."
Your license key will be sent to this address.
Copy this exactly from the CASTR demo application.

By purchasing, you agree to the CASTR Software License Agreement.

Payments are processed securely by Stripe. We never store your card details.

Renew Upgrade Coverage

TBD
Extends upgrades for 12 more months
  • Unlocks all releases published during your coverage window
  • Keep the latest features, fixes, and engine improvements
  • Continued email support
  • Optional — your existing version keeps working without it
Renewing? Your Machine ID is visible in the top bar of the app once it is licensed.
The email tied to your existing license.
From the top bar of your licensed CASTR app.

By renewing, you agree to the CASTR Software License Agreement.

Payments are processed securely by Stripe.

Frequently Asked Questions

What does the TBD license include?

A perpetual license to run CASTR on one machine, plus 12 months of free upgrades to any new releases published during that window.

What happens after 12 months?

Your installed version keeps working forever. To unlock releases published after your coverage window, renew for TBD for another 12 months of upgrades.

Do I have to renew?

No. Renewal is optional. You only need it if you want the newest releases.

I bought CASTR before v1.7 — does this affect me?

No. Licenses purchased before v1.7 include lifetime upgrades at no additional cost. You will continue to receive all future releases free of charge.

How long does it take to receive my license?

Licenses are typically delivered within 24 hours of confirmed payment. You will receive an email with your license key and activation instructions.

Can I transfer my license to another computer?

Each license is tied to a specific Machine ID. If you need to move to a new computer, contact us and we will issue a replacement license at no charge.

What if I need help with the application?

Contact Michael Smith at michael.smith935@gmail.com.

Is there a refund policy?

If you experience any issues with the software, please contact us within 30 days of purchase for a full refund.