I have persisted with this app because I am optimistic and see that this could be a great app with some updates. It is not actually compatible with Shopify as it takes over the shopping cart/checkout entirely. So if you run other apps that require the cart and checkout to remain as standard, it will not work at al for your store. It sets up a shopping cart within the Shopify shopping cart so there are 2 checkout buttons. UPDATE (1st AUG 2023): The developers have now been helpful with working on the coding for my store so that the messy checkout this app makes is better for our customers. This app does have plenty of possibility and potential and I still hope that in time the required improvements will be made, however it is a way off from actually being properly compatible with Shopify, especially if you sell items that do not require customisation along ones that do using this app. UPDATE (26th APR 2025): Where has the advertised Live Chat Support for this ap gone?? Sadly there is now zero support available for this app. It completely stopped working for no apparent reason! We had to contact every customer and ask them to email the details of their designs to us and remake all the designs manually! Thankfully our customers were very understanding, however the massive time and admin cost to this was horrible. No response to emails to the developer. After searching for alterrnative contact details I found the Lumise App facebook page. The response to the message was that this app is now managed by a different company! This is appauling. Changed my review from 3 stars to 2 stars. The app has potential but without any support it is nothing but a liability to any business and we do not recommend it. 1/8/23 - Updated and increased the rating from 1 to 3 stars.