Contact Us
We'd love to hear from you.
General Inquiries
For general questions, feedback, or partnership inquiries, please reach out via email:
Technical Support
If you're experiencing a bug or technical issue with AI Diagram, please email us at the address above with:
- A description of the issue.
- Steps to reproduce the problem.
- Your browser and operating system.
- Screenshots, if applicable.
We aim to respond to all support requests within 48 hours.
Billing & Subscriptions
For questions about your subscription, payments, or refunds, please email us at support@calcstack.co with your account email. You can also review our Refund Policy.
Privacy & Data Requests
To exercise your data rights (access, correction, deletion, or export), please email us with the subject line "Data Request". See our Privacy Policy for more details.
Business Address
AI Diagram by CalcStack