I found this app on sharewareonsale.com which offers 100% free for Sizle_IO. So I signup for it because it sounds great app.
But in the process of registering it tries to collect my credit card information then it can charge you every time. This is not the free offer but something that you can not believe it. And I think it is unnecessary to get the private information here.
Bad experience that I have.
So pity.