If you don't have the budget to get an 3rd party app, then just use the code discounts and show the code on the storefront. If you're just an NPO, it probably doesn't matter that much.

Edit the liquid theme file. For example check if the product has the tag sale. If yes, show a discounted price. This will just be visual and not change the actual price

Showing the different prices on the product page is easy. Edit the theme, check for customer tags in liquid and reduce the price. This is just visual. To actually charge a discounted rate, you need to develop an app and use the discount functions API...

Little late to the party, but since I've seen that people are still looking for a solution.. One of my clients was also looking for a solution, and we didn't find any good native solution. So we created our own app and also made it public for others ...

By the way, one of my clients was also struggling with this, so we created a super simple app. There you can just create a membership product yourself, and if someone buys it, you tell the app to apply a membership to this customer that will be valid...

What is your specific use case? Do you want to give a small discount gift for creating an account?

This use case should fit a gift card. Why not use that?

Very late to the party. Since we had a similar issue recently and didn't find a good solution, we developed our own app for this. We needed the accessories voucher to also be redeemable at a later point. I want to share it here to help all others tha...