Burner: Second Phone Number

"This information includes IP address, Media Access Control (MAC) address, device type, screen resolution, operating system name and version, device manufacturer and model, language and Internet browser type and version... device identifiers (including Apple's IDFA and Android's advertising ID)... We may use SDKs on our mobile applications that leverage identifiers provided in mobile operating systems like iOS and Android to (i) inform, optimize, and serve our marketing to you based on your use of the mobile applications; and (ii) provide analytics on the performance of our marketing."

The app collects Apple IDFA and Android advertising IDs and uses SDKs to track users across contexts for marketing optimization, enabling cross-service tracking and profiling.

"We and our service providers (including Google through its provision of Google Analytics services) may also collect analytics data through our Services... The information (including your IP address) collected by various analytics technologies described in the 'Cookies and Other Tracking Technologies' section above will be disclosed to or collected directly by these service providers, who use the information to help us evaluate your use of our Services."

Third-party SDKs and analytics services like Google Analytics collect data directly from users' devices, and the company shares personal information broadly with affiliates, subsidiaries, marketing services, and technical service providers.

"This information includes IP address, Media Access Control (MAC) address, device type, screen resolution, operating system name and version, device manufacturer and model, language and Internet browser type and version... device identifiers (including Apple's IDFA and Android's advertising ID)... In some other limited cases, we may also collect audio information (such as audio recordings if you do not opt-in to voicemail customization or speech-to-text requests)."

The app collects MAC addresses, multiple device identifiers, and audio recordings — the MAC address collection in particular goes beyond what is needed for a phone number app's core functionality.

"General geolocation information, such as your city and state based on IP address. [Disclosed to:] Affiliates and subsidiaries and providers of technical services."

The app collects IP-based geolocation data and shares it with affiliates and technical service providers.

"Ad Hoc Labs reserves the right to update or modify this Privacy Policy at any time and from time to time without prior notice. Please review this policy periodically, and especially before you provide any information. Your continued use of our Services after any changes or revisions to this Privacy Policy shall indicate your agreement with the terms of such revised Privacy Policy."

The company can change the privacy policy without any notice to users, and continued use is treated as acceptance of the new terms — users must proactively check for changes.

"We will retain your information for the period necessary to fulfill the purposes outlined in this Privacy Policy unless a longer retention period is required or permitted by law. We may also maintain backups of certain data for longer than the original data for security and business continuity purposes."

There is no specific deletion timeline, and backups of user data may be kept indefinitely even after a user deletes their phone number through the 'burn' feature.

"If you delete a number via this 'burn' feature, we delete all its history and message content from the application on your phone and from our primary working server. Backup copies of this data are not immediately deleted. Additionally, some aspects of user history are maintained for longer periods of time on our primary working server so that we can reconcile our records and manage our business."

Even when users explicitly delete a phone number, backup copies and user history data persist on servers for an unspecified period, undermining the apparent finality of the deletion action.