Purchase history comes across. Passwords never do. The links your customers shared stop working the day you uninstall, and there's exactly one way to get them back. Here's the whole thing, including the parts that are inconvenient for us.
The hard part of a Swym migration isn't the registries. It's the gifted progress on them, and that's a question about your Shopify order history rather than about either app.
Most of a registry migration is routine. Two steps are irreversible in the wrong order, and one decision has to be made before you contact anybody. Here is the sequence.
Two fields decide whether a registry migration works. Everything else degrades gracefully, and one thing cannot be moved by anyone. Here is the whole map before you ask anyone for an export.
The links are on your domain, so it feels like they're yours. The middle of the path belongs to the app you're leaving. Here's what that means the day you uninstall, and how to make sure nobody notices.
Seven apps, compared on what actually differs: what the free plan really gives you, how many registries you get per pound, whether it works in store, and how much of your theme you have to touch.