You may start promoting using social networks such as Facebook which is free. Do some article marketing (though you need to write some articles for this) of which you can then submit to Article Directories such as Ezine.
Please help our moderating team work more efficiently by not sending us support questions via PM. You can read more about how AppThemes support works here
. However, you can send a PM to follow up and remind me if I missed your support request/thread.
Thank you and have a nice day.