This document discusses whether companies should develop mobile apps for e-commerce. It provides statistics showing that mobile, especially smartphones, is overtaking desktop for online shopping. While apps see more engagement like time spent and transactions than mobile web, apps have reached saturation with consumers only having a few on their devices. Companies should only develop a native app if they are a major brand willing to invest heavily in high quality app development that provides additional experiences beyond commerce alone. Otherwise, companies should focus on optimizing their mobile web experience or using third-party app distribution channels.