BLOY Loyalty Points & Rewards

We set this up on a Japanese store, and the deciding factor was that point
redemption can be completed entirely within the cart.
Since Shopify restricts checkout UI extensions to Plus, the cart page is
effectively the limit on the Grow plan. BLOY handles this well with a banner
and modal on the cart page. Choosing the discount code method also lets
customers redeem a partial amount of their points, with the remainder staying
on their balance — that flexibility has been useful.
Almost every string in the app is editable, so localizing into Japanese was
straightforward.
Support has been the standout. I sent them a request about usability and they
shipped the change shortly after. Not many apps actually act on merchant
feedback like that.