Last updated: 1 November 2026
This English version is provided for convenience. In case of any discrepancy, the French version prevails.
The Séréni association cares deeply about protecting your privacy. This policy explains what data is processed by the Séréni app (iOS, Android and web versions) and by this website, for what purpose, and how to exercise your rights. It complies with the General Data Protection Regulation (GDPR).
“Séréni” association — French “loi 1901” non-profit association.
Registered office: 81 avenue des Arènes de Cimiez, 06000 Nice (Alpes-Maritimes), France
RNA no.: W062021362 — SIRET: 13020903400011
Contact: contact@sereni-asso.fr
Séréni only collects the data strictly necessary for the service to work. No data is sold, rented or transferred to third parties for commercial purposes, and no advertising is shown in the app.
Depending on the features you use, the app may process:
Messages exchanged between the senior and their loved ones (alerts, short notes, reminders, address-check requests, video-call signalling) go through the Séréni relay, a server operated by the association and hosted in France (OVH). They are end-to-end encrypted with a key shared only during pairing (QR code or link): neither the association, nor the host, nor Apple or Google can read them. Messages are deleted after 72 hours at most.
To alert you even when the app is closed, the relay keeps your phone's notification identifier (provided by Apple or Google) and a random device identifier for as long as the pairing exists; they are deleted when you unpair or as soon as Apple or Google declares them invalid. Apple (or Google) only passes on a notification with no readable content, which your phone decrypts itself. The relay knows neither your name, nor your number, nor your e-mail address; its logs contain neither message content nor your IP address. Your IP address is used only in memory, to limit abuse and, when your phone registers for notifications (at most once a day), to derive an approximate location (country and region); only the country and region are kept with the registration, never the IP address itself.
Usage statistics. To monitor how Séréni is used and report to its funders, the association looks at anonymous totals computed by the relay: number of active phones per role (senior, caregiver, home display), per type of phone (iPhone or Android) and per country and region, number of messages and alerts, response times. These figures cannot identify anyone: no pairing appears in them, and a region with fewer than 5 devices is grouped with others. They are accessible only to authorised members of the association's board and are neither sold nor passed on to third parties. The approximate location is derived using DB-IP's free IP to City Lite database, installed on the association's server: your address is not sent to any external service.
Alert follow-up. When a fall, an SOS or a lack of activity is reported, the relay automatically re-alerts loved ones until one of them answers “I'm on it” (for one hour at most). To do so, it keeps, for the duration of the alert, its technical identifier, the time of the alert and, where applicable, the time it was taken in charge or closed. It still knows neither who fell nor who is handling it: first names and texts remain encrypted. This information is deleted at the latest seven days after the alert ends. The relay also keeps anonymous counters (for example, the number of alerts handled within 3 minutes), with no identifier at all, to check that the service works properly.
A tablet can be installed in the senior's home to show the time in large print and ring reminders. The medical schedule entered by the caregiver is sent to it end-to-end encrypted; the intake confirmations sent back to the caregiver never mention the name of the medicine.
A paired caregiver (from their iPhone or Android phone) can request a video call. The senior's device rings; the camera and microphone only turn on if the person taps “Accept”. They can decline or hang up at any time, and a banner reminds them throughout the call that they can be seen and heard. Optional feature, off by default: on the home display (tablet) only, the senior can choose to have calls answered automatically after 30 seconds, if they cannot always reach the screen. This option can only be turned on on the tablet itself, with their consent; a voice warns them 10 seconds beforehand, they can always decline or hang up, and both the caregiver and the call history show “answered automatically”. Picture and sound travel directly from one device to the other, end-to-end encrypted: they never go through any server of the association and are never recorded. To set up the call, both devices exchange encrypted technical messages through the Séréni relay and query a public address-discovery server (STUN, Google), which receives neither picture nor sound. As with any direct call, each device knows the other's IP address during the call. To make the senior's Android phone ring when the app is closed, a Séréni notification “caller's first name wants to see you” is also sent by the relay. The call history (date, first name, duration) stays on the devices. The caregiver must inform the person of this possibility and obtain their consent during installation.
Health and wellbeing data receive enhanced protection. They are processed only to provide the service (alert in case of a possible fall, caregiver-senior link), on the basis of your consent, and are used for no other purpose. You can withdraw your consent at any time by no longer using the feature concerned or by contacting us.
Depending on the case, processing is based on your consent (in particular for health data and notifications), on the performance of the service you request, and on the association's legitimate interest in ensuring the proper operation and security of the app.
Your data is intended for the Séréni association and, where applicable, for the loved ones you have chosen yourself (caregiver, person to alert). Technical providers (hosting of the relay by OVH in France, Apple and Google notification services, address-discovery server for video calls) may act strictly on behalf of the association and on its instructions, without reusing your data for their own purposes.
Your data is kept as long as needed for the service to work, then deleted or anonymised. Most of it stays only on your devices. On the Séréni relay, encrypted messages are deleted after 72 hours at most, and the notification identifier is deleted when you unpair or as soon as it is no longer valid. You can ask for your data to be deleted at any time (see “Your rights”).
The association implements reasonable technical and organisational measures to protect your data against loss, unauthorised access or disclosure: end-to-end encryption of messages, HTTPS connections, a hardened, monitored and backed-up server.
This website does not set advertising tracking cookies and does not sell any data. If you e-mail us, your address and message are used only to reply to you.
We use an audience measurement tool (Google Analytics) to understand how the site is used and improve it. It is enabled only after your consent, given through a banner on your first visit; IP addresses are anonymised. You can decline or, after accepting, withdraw your choice at any time by clearing the site's browsing data. Until you consent, no audience measurement tracker is set.
Under the GDPR, you have the right of access, rectification, erasure, restriction, objection and portability of your data, as well as the right to withdraw your consent. To exercise them, write to contact@sereni-asso.fr. You may also lodge a complaint with the CNIL, the French data protection authority (www.cnil.fr).
This policy may be updated to reflect changes in the service or in regulations. The applicable version is the one published at www.sereni-asso.fr/confidentialite.html (French) and translated on this page, with its date of update.
See also: legal notice and terms of use.