The Comprehensive eCommerce App Development Guide: Everything You Need to Know in 2026

Ecommerce app development includes mobile and web sales apps. The apps manage catalogs, payments, logistics, and customers. An ecommerce app enhances user experience and business.

The cost of developing an ecommerce app will depend on its features and complexity, as well as the platforms powering it. Simple apps can range from $15,000 to $25,000; more complex enterprise systems with artificial intelligence and marketplaces often surpass $100,000. Ongoing maintenance adds 15–20% annually.

Some of the features have to be product search, payments (if secure), order tracking, push notification, and customer reviews. Modern apps also use AI-based recommendations and are multi-platform. All of these are contributing to increasing user engagement and revenues.

AI upgrades apps with chatbots, personalization, and predictive analytics. AI in ecommerce enables firms to push products to customers, automate customer support, and determine restocking times, as Amazon does. Generative AI in ecommerce can also personalize purchasing experiences.