Apps
Focused Shopify apps
Each Culsin app does one thing properly. Works out of the box. A developer or AI coding agent can extend it if you need something custom.
Live on App Store RankRobin
Sort Shopify collections by sales performance. Configurable windows, scheduled updates, and auto-created seasonal bestseller collections.
Live on App Store Simple Split Testing
A/B test storefront variants. Markup-driven, sticky assignment, conversion tracking with statistical significance.
Coming soon B2B Registration Form & Approval
A registration and approval workflow for wholesale Shopify stores. Collect applications, validate VAT IDs, and manage approvals from your admin.