Welcome to Zen Flowchart! Please send us your questions to, and we’ll get back to you within 24 hours!

In the meantime, please read our FAQs below to see if that might help answer your questions.

Frequently Asked Questions

Can I cancel my subscription anytime?
Yes, you can cancel your subscription anytime by going to Settings > Customer Portal.
Does this work on mobile?
Documents can be viewed on mobile devices, but you need a desktop browser to edit or comment.
I can't find the shape that I need
We're working hard to bring more shapes to our library. Which shape would you find helpful? Let us know at
How do I add another editor?
You need a PRO subscription to use our collaboration features. On the Editing page, click on "Share" button and start inviting your collaborators!
Where can I find my invoices / receipts?
You can customize and download your receipts / invoices by going to Settings > Customer Portal.