Shopify app creator Mat de Sousa shares his top tips with a growing audience of developers.

Shopify also announced that it's lowering its share of developer revenue across the Shopify App Store, as well as in the new Shopify Theme Store.

Thomas Bertrand built a Shopify app after years of selling on the e-commerce platform. His app aims to help merchants simplify international shipping. He is one of many building apps for Shopify's ...