Pao is described as '(short for "program as objects") is firstly an idea that a computer program is reprensented totally as objects, as opposed to textual code in the traditional way. This objectization covers all the aspacts of a program, including the internal respresentation' and is a IDE in the development category. There are more than 10 alternatives to Pao for a variety of platforms, including Windows, .NET Framework, Mac, Linux and Web-based apps. The best Pao alternative is Microsoft Visual Studio. It's not free, so if you're looking for a free alternative, you could try Microsoft Visual Studio or SharpDevelop. Other great apps like Pao are Microsoft Small Basic, React Studio, Cevelop and Pelles C.