Miramath is described as 'Open source project inspired by the MathCad mathematical application. The main user interface consists of a page into which mathematical expressions can be entered or edited and then evaluated' and is an app. There are eight alternatives to Miramath for a variety of platforms, including Web-based, Windows, Linux, Mac and Android apps. The best Miramath alternative is SMath Studio, which is free. Other great apps like Miramath are PTC Mathcad, EngineeringPaper.xyz, MathStudio and Swift Calcs.
It is the most complete free distribution version with paper format, it is the product that stands on equal terms with mathcad. I like it and I have migrated. we are teaching it at the university