OneTap app shares the user information with "Google" and displays the customized advertisement (Google AdMob) based on the acquired information. For details, please read "Google Policy and Terms".
If you do not wish to send user information to advertisers and third party distributors, you can limit them by the following method.
Settings > Privacy > Advertising > Turn on "Limit Tracking Ads"
Settings > Google > Ads > Turn on "Opt out of Ads Personalization"
To send questions, opinions and requests to us, it is necessary to enter the E-Mail address in "CONTACT US". The e-mail address you enter is used only for replying to E-Mails, not for other purposes.