isn't this the expected behavior for apps that you give the sms / voice call / contacts permissions to? i would be surprised if any such app did not display my call/sms history and autocomplete contacts.
At least Wikipedia says [1]:
> In general terms, in the U.S., whoever can be troubled to key in the data, is deemed to own the right to store and use it, even if the data was collected without permission, except to any extent regulated by laws and rules...
[1] https://en.wikipedia.org/wiki/Information_privacy_law#United...