How Subi compares

Both run subscriptions on Shopify. The difference that matters is what you pay as you grow, and whether you are tied in. Here is the arithmetic, with the dates the numbers were checked.

Loop and Subi are close on philosophy, both flat, both month-to-month, both without the per-order fees that make the incumbent expensive. The difference is where the rate sits as you grow.

Skio sells one plan, priced for brands already doing serious subscription volume. Subi has an entry point. Which is right depends less on features than on where your store is today.

Appstle charges a flat monthly fee with no transaction fee at all. Subi charges a lower monthly fee plus a percentage. On the monthly bill alone, Appstle is cheaper at every volume their published plans cover. The question is what happens when you outgrow that coverage.

Seal charges by subscriber count, no transaction fee, topping out at $25 a month for 500 active subscriptions. Subi charges by subscription revenue. The two models answer different questions, and the right one depends on how many subscribers you have and how much they spend.

Stay AI sells one plan, priced for brands that have already committed to subscriptions and want the retention tooling built around them. Subi starts lower and steps up. Which matters more depends on where you are.

Bold has been on Shopify since the early days. Subi arrived later. Both charge a flat monthly fee plus a percentage of subscription revenue, so the comparison is straightforward arithmetic, and the answer changes depending on your volume.