They tell you that you have 3 days demo and after those 3 days if you continue they will charge you. However they charge you immediately! Funny thing is that I would actually continue after the demo, however because of this developer's "approach" I am cancelling and asking for a refund. Other than this issue, app also disconnected occasionally as if internet is gone (other apps work). Also I realized that their other parts of app are separately paid. Beware before clicking anything in this app!