The umbrella over your cart.

Merchants stitch together five to ten point apps — a bundles app, a reviews app, an upsell app, a loyalty app — each with its own bill, its own data silo, its own script slowing the storefront. Cartrella collapses them into one suite: one account, one data graph, one bill, one script.

BundlesFirst

Mix-and-match packs priced by a Shopify Function inside checkout — displayed, carted, and charged as one number that cannot drift.

ReviewsNext

Collection, moderation, and widgets that inherit your theme — social proof that feeds the same graph your upsells read.

UpsellPlanned

Recommendations powered by review and order data the point apps cannot see.

LoyaltyPlanned

Points and perks on the same customer graph — no separate silo to sync.