Are there any page builder apps that can be purchased partner side. I would like to use one of the page builder apps when designing a store for a client, but I don't want the client to have to continue to pay for the app after the store has been transferred. In other words, I would be happy to pay a one-off fee to use a page builder app in the build phase if that makes sense...
Or should I look to make theme customizations in the code? What do other partners do please?
I don't know about all apps, but I believe Shogun Page builder lets you do this. I don't know if you can still customize features afterwards though: