MBC Bundles has no subscription engine of its own. It cannot set a billing frequency, offer a prepaid plan, apply a subscriber discount or run a customer portal — there are no fields for any of that in the app. All of it belongs to Recharge.
What MBC Bundles does is pass a selling plan from Recharge through to the cart, so the products in a bundle can be bought on a recurring basis.
Which app does what
Recharge. Creates the selling plans: billing frequency, prepaid or pay-as-you-go, subscriber discounts, and the customer portal where subscribers pause, skip or edit deliveries. Recharge is a Shopify subscription platform that powers recurring purchases through Shopify's checkout.
MBC Bundles. Builds the bundle and hands the shopper's selling-plan choice to the cart. Nothing about the subscription terms is configured here.
On Shopify: Recharge Subscriptions app. Website: Recharge.
Setting it up
Three things have to be true. Missing any one of them means no subscription option on the storefront.
1. Put a selling plan on the products
Install Recharge and follow its own setup instructions, then create your plan there and attach it to each product you want in the bundle. Do this before you build the bundle.
2. Tick the checkbox on the bundle
Open the bundle, go to the Advanced tab, and tick Enable integration with subscription apps in the Advanced settings card.
This is a per-bundle setting. It is not in Settings, and it is not part of the widget placement options.
The checkbox appears on widget-only and Physical bundles of every structure. It is removed on Shopify-type bundles — if you cannot find it, check the bundle's type first. It is also greyed out on the non-primary variant of a running A/B test.
3. Turn on Subscription discounts
Go to Settings → App settings → Combinations discounts and turn on Subscription discounts, so your bundle discount is allowed to combine with Shopify's subscription discounts. See "General settings."
While this toggle is on it shows the warning "It is not permitted to use the shop without subscribing". That is informational only.
Why a subscription option sometimes never appears
A selling plan attaches to a cart line, so the bundle's items have to reach the cart as separate lines for a subscription selector to be shown at all.
A Physical bundle set to check out as one combined item shows no selector even with the checkbox ticked and the plan in place, because there is only one line in the cart for the whole bundle. If that is your setup, use a bundle whose items arrive in the cart separately.
What the shopper sees
The subscription choice is shown in the widget or on the bundle's page, priced from the plan you created in Recharge.
