Shopify Checkout Blocks

The app advertises itself as free, but in reality, it is not. On the Professional plan, you can only add blocks to the order tracking and thank you pages. If you want to add a block for something actually useful—like custom order notes from customers during checkout—you need the Pro plan, which costs $399. This critical detail is hidden before you install the app. If this is how Shopify and its app partners treat customers, I strongly recommend looking for alternatives.