Blog / Updates

Updates

Release notes and launch announcements for Culsin Shopify apps: RankRobin, Simple Split Testing, and B2B Registration Form & Approval.

All Guides Updates

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.

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.