Sentinella
Sentinella privacy policy
Version 0.3.1 (closed beta) — 9 November 2026. Draft to be reviewed by legal counsel before public launch.
Sentinella is an app that turns an Android phone into a home "Sentinella" and another phone into a "Viewer" to receive alerts and watch live. This notice explains which data we process, why and for how long (Articles 13 and 14 of Regulation (EU) 2016/679, "GDPR").
Who is the controller
AIRLAN S.R.L. — Via Dell'Unione Europea 45, 76121 Barletta (BT), Italy VAT / Tax ID: 07797180721 · REA BT-582474 (Chamber of Commerce of Bari) · Share capital € 10,000 fully paid PEC: airlan@pec.it · Sentinella service email: app@airlan.biz Administrator and developer of the Sentinella product: Domenico Metta.
(Company details from public Registro Imprese / VIES sources, July 2026 update; confirm on a company registry extract before public launch.)
The principle: your videos stay yours
- Audio and video do not pass through our servers and we do not store them. Live view travels encrypted (WireGuard + WebRTC/DTLS-SRTP) between your devices; our server only forwards encrypted tunnel packets and cannot see their content.
- Alarm clips and photos are sent directly from your phone to your Telegram bot, if you set one up: Telegram processes that content as an independent controller under its own policy. We do not receive it.
- The service administrator cannot see your cameras or hear the microphone. If you ask for help you can grant a timed support access (30 minutes) from the app that shows technical data only (status, version, events), never images or audio.
What data we process
| Data | Why | Legal basis | Retention |
|---|---|---|---|
| Email and password (stored only as Argon2id hash) | create and protect the account | contract (Art. 6.1.b) | while you have an account |
| 2FA secret and recovery codes (hashed), if you enable two-step verification | access security | contract | while you keep it on |
| Devices: name, model, Android and app version, anonymous device fingerprint (hash), tunnel public key and IP | run Sentinella and Viewers, licenses | contract | while the device is on the account |
| Technical status: online/offline, last signal, public connection IP | show you if the Sentinella is active, security | contract and legitimate interest (Art. 6.1.f) | latest value |
| Events (type, time, noise/motion level; never images or audio) | alert you and show history | contract | 90 days |
| Access log (sign-ins, failed attempts, live views with time and Viewer) | transparency and security, visible to you in the app | legitimate interest | 12 months |
| Minutes used and ad unlocks (Free plan) | run the free plan | contract | counter: while you have an account; individual unlocks: 30 days |
| "Custom project" requests (name, email, company, phone, message) | reply to you | pre-contractual steps | 24 months or until you ask |
| Subscriptions and payments (plan, status, amount, renewal; not card details) | billing | legal obligation (Art. 6.1.c) | 10 years (tax rules) |
Advertising on the Free plan
On Free you can watch an ad video for 5 more minutes. Videos are provided by Google AdMob, which may use the device advertising ID. Before personalized ads we ask for consent (Google UMP / IAB TCF); you can refuse and get non-personalized ads. Paid plans have no ads.
Where data lives and who sees it
Servers are in the European Union (Italy). Processors that may handle data for us (Art. 28): hosting and network; later transactional email and push notifications (Firebase Cloud Messaging), listed here when enabled. Google (AdMob, Play) and Telegram act as independent controllers. We do not sell data to anyone.
Cameras and other people
If the Sentinella films places where other people pass (staff, guests, customers), you are the controller of that footage: follow the CCTV rules, do not film public or other people's spaces, and display the "CCTV in operation" sign you can generate as a PDF in the app or at sentinella.airlan.biz/sign.
Your rights
You can ask for access, rectification, erasure, restriction, portability and object to processing (Articles 15–22) by writing to app@airlan.biz. You can delete your account at any time in the app (Settings → Account & security → Delete account): we immediately erase account, devices, events and access log; only the payment records the law requires us to keep remain. You can lodge a complaint with the Italian Data Protection Authority (www.garanteprivacy.it) or your local authority.
Children
Sentinella is not intended for people under 16.
Changes
If we change this notice in a material way we will tell you in the app before the changes take effect.