Who.Scalling.com and ListYourself.net respects your privacy and your information. We encrypt the communication between the application and the cloud based resources.
The Who.SCalling application uses a cloud based directory to try and inform you who is calling your phone number.
When you volunteer the name of an unknown caller, that association may be used when that caller calls others. We keep a record that you (using your phone number or email address) made an association for internal purposes only. We will not share your identity with others.
The record of calls made to or from your phone is only maintained on your phone and you can erase this history by using the "Clear History" function in the menu.
The relationship with any advertisers on the application or web site is arms length and through third party intermediaries. Hopefully, all advertisements are clearly marked as such.