When I first had the idea to create my game, it was a struggle deciding which of the many frameworks out there I would use. Phone Gap, Titanium, Xamarin, Unity…the list goes on. Then I found Corona SDK, which used this scripting language I had never heard of called Lua, and I fell in love with the ease and simplicity of everything.
Today, Corona Labs announced that their SDK is completely FREE! Corona always had a free tier, called Starter, which was actually very generous with the amount of features that you could use. But if you wanted access to certain plugins and features like in-app-purchases, then you had to upgrade to either Basic or Pro.