Refund policy
Last updated · October 1, 2026
Payments for SynthesisUI are processed by Paddle, our merchant of record, and refunds are returned through Paddle. This policy is part of our terms of use.
Seven days to change your mind
Brazilian consumer law (CDC, art. 49) gives you seven days from the purchase to withdraw from it and receive a full refund, no reason required. This is your right, it applies to every purchase made online, and nothing on this page reduces it.
After those seven days
Payments are not refundable after the seven days. Cancelling stops the next charge and keeps your access until the end of the period you already paid for.
If we broke something you paid for
If the product fails to do what we sold it to do and we cannot fix it, we refund the period affected. We would rather do that than argue about it.
A refund ends your paid plan immediately
When we refund a payment we also cancel the subscription it paid for, and your account returns to the free plan at once - it does not wait for the end of the period. Your systems, versions and history stay where they are.
How to ask, and how long it takes
Email massaaki@synthesisui.com from the address on the account. We reply within two business days and approve the refund in the same message when it falls under any of the cases above. The money is returned through the same method you paid with, by Paddle, and how long it takes to appear on your statement is up to your bank or card issuer - usually five to ten business days.
Cancelling instead
You can cancel at any time from your own account, without contacting us. Cancelling stops the next charge and keeps your access until the end of the period you already paid for - your systems, versions and history stay where they are, and the free plan continues to apply.