How Tether handles your data
The short version: we sell subscriptions, not you.
Your address book isn't readable by other users. Inside Tether, access to it is limited to what's needed to run, secure and support the service.
No public feed and no open people search. Nobody can browse Tether's members. To find you, someone needs your @handle, or your name together with your phone number or email address. To suggest connections, we match the phone numbers saved in people's address books, and we may suggest you to friends of your connections, who see only your name, photo and handle — you can turn that off in Settings. A suggestion never connects anyone until one person asks and the other accepts. We keep your own number and email on your account to text you a sign-in code and send account notices.
Encrypted in transit and at rest. TLS in flight, AES-256 at rest. Photos have their location metadata stripped on upload.
Nothing is stored that you did not pick. Only the contacts you choose are saved. The rest of your address book is never uploaded.
Revoking actually revokes. Fields someone shares with you are never written into your own address book. Your phone holds them only to show them to you, and when they stop sharing something, it is removed from your phone the next time Tether syncs.
Availability shares busy and free times, nothing else. Your calendar is read on your phone, and only busy and free times leave it — never event titles, never locations.
You can leave with everything. Export as CSV, JSON, or vCard. Delete your account and, after a 30-day window to change your mind, the data goes with it.How account deletion works.
No ads, no ad-tech trackers, no data sale. Wherever you live, you can access, correct, export, or delete your data, and the Privacy Policy explains the extra rights your state's privacy law may give you.