Updates
New
May 21, 2026
RankRobin is live on the Shopify App Store
RankRobin sorts your Shopify collections by what actually sells. Configurable windows, scheduled updates, and seasonal bestseller collections. Now available to install.
Shopify Apps
Focused tools
for Shopify merchants.
Culsin makes small, purposeful Shopify apps. Each one solves a real problem and does it well, without the bloat.
The apps
Small, focused Shopify apps. Each one does one thing, and does it properly.
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.
From the blog
Recent posts from the team.
Updates
New
May 21, 2026
Simple Split Testing is live on the Shopify App Store
A/B test your Shopify storefront with two data attributes. Sticky assignment across the checkout, two-proportion z-tests, and a free plan. Now available to install.
Updates Apr 10, 2026
Introducing Culsin
Culsin makes small, purposeful Shopify apps. Each one does one thing well. Here's what we're building and why.