Meteor.js is a full-stack JavaScript platform that simplifies web application development by allowing developers to use a single codebase for both the client and server sides. It provides an integrated set of technologies, including real-time data updates, a reactive templating engine, and a built-in package management system, streamlining the process of building modern and scalable web applications.

React is a widely used JavaScript library for building user interfaces and single-page applications. It follows a component-based architecture and uses a virtual DOM to efficiently update and render UI components

A landing page is a standalone web page designed to promote a specific product, service, or offer. Landing pages are used in marketing campaigns to drive conversions and increase revenue, and typically include a clear call to action, minimal distractions, and a focus on the benefits of the product or service.

A template or theme refers to a pre-designed layout or structure that provides a basic framework for building a specific type of application or website. It typically includes good design, placeholder content and functional features, allowing developers to customize and fill in the details according to their specific needs.