Customer support

How can we help?

For installation, updates, licensing, billing, or a technical problem, email the address below. A concise diagnostic note is the fastest path to a useful answer.

Email support Download latest version Manage billing with Stripe

What to include

App or installer

  • App version from Help → About
  • Your Windows version
  • The exact error message
  • The steps immediately before it happened

Purchase or license

  • The email used at Stripe checkout
  • The approximate purchase date
  • Whether you still have the purchase confirmation page

Quick checks

Update did not start

Use Help → Check for Updates. If the in-app download fails, use the latest installer from the download section. Installing it over the existing copy keeps the same application identity.

License will not activate

Enter the email used at Stripe checkout and the key shown on the purchase confirmation page. Check for copied spaces. If a machine slot must be released, use Help → Sign In & Activate License → Sign out of this installation on that machine.

Lost license key

Email support from the checkout address with the approximate purchase date. Do not send card details. Automated email recovery is not available yet, so recovery is handled manually.

Old or unavailable machine

Each subscription supports three active installations. A machine that does not validate for 30 days releases its slot automatically. If you still have the machine, signing out in the app releases it immediately.

Windows SmartScreen warning

The current early-access installer is not yet code-signed. Confirm the version and SHA-256 shown on the download page before running it. If the values do not match, delete the file and contact support.

Security reports

Report a suspected vulnerability privately to support@thermofluidstudio.com. Include reproducible steps and the affected version, but no live credentials, customer data, or project data.