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!
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution
Rust - A safe, concurrent, practical language
ITSCircle POS - ITSCircle POS is a point of sale solution for retail stores.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible