What Tendline keeps, and why.

Your account. Your email address. You sign in with a link we email you; there is no password. If you add people who should get alerts, we keep the first name you give each one and, if you add it, their email address.

Your cameras. Each camera’s name, type and the location words you give it (“front door”, “garage”), whether it’s online, and whether its video is encrypted. For Ring cameras, we also keep your Ring account’s ID and the access tokens Ring gives us when you connect, stored encrypted. We never ask for your Ring password.

Camera events and frames. The event notices your cameras send (for example “motion at the front door at 2:14 PM”, with the camera’s own label such as person, vehicle or package), and still frames we fetch when a routine, Watch or a check needs to look. Frames are stored encrypted. We don’t download or keep video.

What was seen. Short text notes about each frame we read (“a courier leaving a box”, counts of people and vehicles, whether the garage door was open), the alerts we sent, and whether each routine was met, missed or couldn’t be confirmed.

Your routines. The sentences you write (“at 10 PM check the garage is closed”) and the settings that go with them, such as who to tell.

Phone alerts. When you turn on alerts in a browser, we keep that browser’s push subscription (an address at your browser’s notification service and the keys used to encrypt alerts to it) and a device name such as “iPhone”.

Booking calendars (hosts only). The calendar link you paste, stored encrypted, and the check-in and checkout dates in it, with each booking’s calendar ID so changes can be matched. Guest names, phone numbers and notes are dropped as the calendar is read and never stored.

Other things you add. Team chat and webhook addresses (stored encrypted), proof pages you make, and a copy of each email we send you (to whom, the subject and the text), so you and we can see what was sent.

Technical. To stop abuse, we count requests per network address. We keep only a one-way hash of the address, and the counters are deleted soon after they expire. If you join the early list, we keep your email, what you said you’d use Tendline for, which cameras you have, the page you joined from and that hash.

We never identify people. There is no face recognition, no face matching, no license plates, no watchlists and no lookups in any outside database. Descriptions use roles and clothing only (“a person in a dark jacket”), and we never follow a person from one account to another.

We never collect audio, even where a camera offers it.

We never sell your data, share it for advertising, or use it to build profiles of you. The site and app have no ads and no analytics trackers.

We never use your frames, events or routines to train any model, and the service that reads your frames for us may not train on them either.

Only to run Tendline for you: to check your routines, run Watch if you turn it on, send the alerts and morning brief you asked for to the people and places you chose, show your history in the app, answer your questions about it, and tell you honestly when a camera couldn’t see.

An image-reading model service. Frames that need reading are sent, with the camera’s name and the yes/no questions your routines ask, to a third-party model provider that reads them and returns a short description. Routine sentences the built-in reader can’t handle, and questions you ask about your history (with the text notes they need), go to the same kind of service. We use it only under terms that don’t allow it to keep your data for training.

Hosting. Tendline runs on Cloudflare, which stores its database.

Email. An email delivery service sends sign-in links, alerts and briefs.

Phone notifications. Alerts to a phone or browser pass through that browser maker’s notification service (Apple, Google, Mozilla or Microsoft). They are encrypted so that service can’t read them.

Ring. When you connect Ring, we use Ring’s official partner API with the permissions you grant in the Ring app. You can change which devices Tendline sees, or remove it, in the Ring app at any time.

Places you choose. If you add people, a team chat or a webhook, alerts go there. A proof page you share can be opened by anyone with its link until it expires or you withdraw it.

Fonts. Our pages load their fonts from Google Fonts, so your browser contacts Google when it opens them.

We may also disclose data when the law requires it.

How long Tendline keeps each kind of data

What	How long
Camera frames we fetched or you sent	7 days, then deleted automatically
Frames a proof page cites	Until that page expires (at most 90 days)
Links to a frame inside an alert	Stop working after 48 hours
Text notes, alerts, routine results and camera event notices	While your account is open
Your account, cameras, routines and settings	While your account is open
Frames from the free “what did your camera see?” tool	Not kept: each is read and discarded

Shorter limits for text history are planned. Until they’re in place, you can ask us to delete any of it at any time.

Email admin1@sovnode.ai from the address you sign in with and ask us to delete your account. We’ll delete your account and everything tied to it (cameras, frames, history, routines, people, phone subscriptions and connected calendars) and confirm by email.

In Settings you can also remove a person, a phone, a team chat or webhook, a booking calendar, or a camera you added yourself (with its stored frames), and withdraw a proof page at any time. Which Ring cameras Tendline can see is up to you in the Ring app; removing Tendline there stops Tendline from using your Ring connection.

Frames, Ring tokens, calendar links and chat addresses are encrypted in our database. Sign-in links expire after 15 minutes and work once. Every message from Ring is checked against Ring’s signature before we use it. No system is perfect; if we learn that your data was exposed, we’ll tell you.

Tendline is for adults responsible for a place. It isn’t directed at children under 13, and we don’t knowingly collect their personal information.

Write to admin1@sovnode.ai with any question about your data, or to report misuse of Tendline. If we change this page in a way that affects your data, we’ll update the date at the top and tell account holders by email before the change applies.

See also what Tendline will and won’t do.