Traq - Traq is a PHP powered project manager and issue tracker featuring multiple projects, milestones...
Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!
Bugify - Bugify is a simple PHP issue tracker, designed to offer powerful bug tracking capabilities in an easy to use system.
Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution
jtrac - JTrac is an open source and highly customizable issue-tracking web-application written in Java.
Heartland Retail - Heartland Retail (previously Springboard Retail) POS software a robust, user-friendly cloud point of sale solution designed for the business of retail. A complete retail management platform built for growing single, multi and franchise brands.