Power Apps is a high productivity and cost-efficient development tool that helps you to build custom apps as per your business requirement through a suite of apps, services, connectors and data sources.
Power Platform is a robotic combination of PowerApps, Power BI, Power Automate and Power Virtual Agents for a business application platform. This combination provides quick and easy app building along with valuable real-time data insights.
Power Platform enables users to analyze data and the ways that data can work for the business most efficiently – Analyze, Act and Automate. It is done collectively by Power BI, Power Apps. Power Automate and Power virtual agents leveraging infrastructure of Common data service and data connectors.