RTCjs is described as '(Real Time Chart) is a JavaScript library designed for real time applications including engineering solutions and plotting any other parameters. It's size is small making it fastest to load. It is designed for quickest implementation and consists of functions that are' and is an app in the development category. There are seven alternatives to RTCjs for a variety of platforms, including Web-based, Self-Hosted, JavaScript, Android and iPhone apps. The best RTCjs alternative is D3.js, which is both free and Open Source. Other great apps like RTCjs are Chart.js, CanvasJS Charts, AnyChart and Chartist.js.