Just installed and it is intuitive to use. My request ended up being a bit more complicated than most but the support from Mateusz was absolutely excellent. Update - just used again and have to say the customer service is second to none.

This app has completely changed what I can do with Shopify. The flexibility is next level — I’m now running discount setups that I thought just weren’t possible. For example, I can tag items added via my bundle builder with a line-item property, and the app’s lets me build a native discount function that automatically applies the correct deal based on the condition/property. It works seamlessly and has opened up so many new promo options for us. Even the basics are useful — like reordering shipping options so customers see our express upgrade first instead of defaulting to free. Small tweaks like that are impossible in Shopify by default, but Function Creator makes it easy. On top of that, the support is excellent. The team genuinely goes above and beyond to help you get things set up and answr questions quickly. If you’ve ever been frustrated by the limitations of Shopify’s standard discount engine, this app is a must-have. And that's just discounts, I'm still to explore the other types of functions.

So far, go Good! Mateusz really helped work through a discount that we wanted to run for an upcoming Laboy Day sale. He managed my requests flawlessly and we look forward to executing. I believe this app will also help with some other components that we will want to run in the future as well! Bravo!

Just installed and it is intuitive to use. My request ended up being a bit more complicated than most but the support from Mateusz was absolutely excellent.

Awesome customer support. Very quick and had no issue recommending something for exactly what we needed.

Amazing support and super flexible app We recently switched to Functions Creator, and it’s been a huge improvement. The app is incredibly flexible thanks to its use of the latest Shopify API. What really made the difference, though, was the outstanding support from Mateusz. He spent a lot of time helping us with a fairly complex request and truly went the extra mile to make sure everything was working as needed. It’s rare to get this level of dedication and responsiveness. Highly recommend the app, especially if you’re looking for something future-proof with real support behind it.

This app has made the discounts that I needed to offer in my store work perfectly, thanks to Mateusz's help.

This app has been extremely helpful for us in creating offers that were landing page specific that did not affect the global site. We were unsure on how to work the app itself and the app team (in particular Mateusz) helped us build our first offer and get it live. Thank you very much for your support so far!

Absolutely essential extension to any Shopify Store. This app allows the most complex discount code setups we have seen to date. Thanks to Mateusz for the help with onboarding.