ProofStress is free to use.

Free to you doesn't mean free to run, though. Keeping it online costs me real money every month: the server it runs on, the AI tools I build it with, the services behind the accounts and email, the domain, and the standards and papers the physics is checked against.

I build it on my own, in my own time. Any help, technical or financial, keeps it going and growing, and is genuinely appreciated.

Buy me a coffee

A one-off contribution of any size goes straight into the running costs above. No account or subscription needed.

Lend an engineer's eye

Help from the field is worth as much as money. Every one of these makes the tool better:

• Report bugs and odd results. Use the 💬 Feedback button inside the app. It sends the page and well context along with your note.
• Ask for what's missing. A load case, a connection or a workflow you need.
• Check results against your own tools. Comparing a well to your in-house software or spreadsheets is the best validation there is.
• Share test data. Example wells, rig logs (hookload, torque) or field measurements you're free to share, anonymised is fine.

Or just send us a note (you'll need a free account).