Currently, you can only redeem promo codes in the web app.
Requirement: You can only redeem a promo code if you do not currently have another active subscription.
Here's how to do it:
Log in to the web app.
Click on the banner for getquin Premium/Wealth in the lower right.
Select the annual version of Premium or Wealth, depending on which package your code applies to.
Proceed to checkout.
Enter your individual code in the "Promo Code" field to apply it.
Good to know:
Promo codes cannot be combined with other discount offers.
The code must be entered during checkout. The getquin team cannot apply a code to your subscription afterwards.
We do not create discount codes on request.

