For more than 3 years now I am making a decend full time income with a desktop cross browser testing application ( http://www.browseemall.com)
It is for a rather small customer group but still works great and is growing modestly.
It is for a rather small customer group but still works great and is growing modestly.
In my experience the customers expect a subscription based pricing especially with an application that required high-frequency updates (I release a new version once or twice a month).