I tried to make an account in LiveCode, but when I was setting my password, it would just loop back to the same screen and I could never create an account. Therefore, I can't download the community edition. Any tips? I tried on many devices.If you want to make your app open-source, maybe Livecode would be a great tool to quickly create a prototype.
You can also call shell scripts (also with administrator privileges using the "open elevated process" command) and AppleScripts (using the "do script" command) from Livecode.
The apps you create with Livecode require only OS X 10.9 Mavericks as a minimum.
As long as your app is open-source, you can use the Community Edition for free.