Privacy Policy
In force since 5 August 2026. Updated 3 November 2026. The French version is the reference text; this one follows it clause for clause.
Syel is an AI friend you talk to about your day. She gives you back a page, and she sees what keeps coming back. What you tell her is, by nature, the most private thing you have: this document says exactly what is done with it, by whom, where, and for how long.
What Syel is not
Syel is not therapy, not a diagnosis, not a health service. She never names a disorder and never applies a clinical label. She is not an emergency service: she can show you where to find help, she never dials and never contacts anyone on your behalf.
Who is responsible for your information
Syel is operated in Québec under business number (NEQ) 2282670977. 1625 De Maisonneuve Blvd. West, Montréal, Québec H3H 2N4, Canada.
Person responsible for the protection of personal information (Québec Law 25): Ted Nsangou, founder of Syel, reachable at support@syel.ai.
Questions: support@syel.ai
If you live in the European Union, write to the same address: it is read by the person named above.
How Syel answers for your information (who is responsible, its life cycle, incidents, complaints) is set out in our personal information governance rules, at syel.ai/legal/governance.
What we collect
What you write. Your messages, stored encrypted. Every account has its own encryption key, itself sealed by a master key that does not live in the database. Your pages, your patterns, their quotes, the titles of your conversations and your first name are encrypted the same way, with your key. A leaked copy of the database would hold nothing readable of what you shared: only dates, states, and the index that lets Syel find a memory, made of numbers.
What Syel writes. Your mirrors (the daily, weekly and longer pages) and the patterns she proposes. They are her readings, not yours: you recognise them or you set them aside: you do not rewrite them.
Your account. An email address only if you choose to link one: a Syel account opens and works without it. A first name, only if you give it. Your language, your region and your time zone, the last one synced from your device so a notification lands in your morning rather than a server's.
The technical minimum. A notification token if you turn them on; a subscription identifier if you pay; and a spend ledger recording, for each model call, the model used, the number of tokens and the cost: never the content.
IP addresses. Our authentication provider processes them to limit abuse at account creation and when sign-in links are sent.
What we do not collect
No analytics. No trackers. No audience measurement, no crash reporting, no advertising, no ad profiling, no precise location. The app ships no library of that kind: it is verifiable in the code, and it is a choice, not an oversight.
We do not sell any information, to anyone, ever.
Why, and on what basis
What you tell Syel touches your inner life: it is sensitive information under Québec's Law 25 and a special category of data under article 9 of the GDPR. We process it on the basis of your explicit consent, given when the account is opened, separate from anything else, and withdrawable.
- Answering you and writing your pages: the service itself.
- Keeping your account and letting you return to it from another device.
- Sending the notifications you asked for, and only those.
- Billing paid subscriptions, if you choose one.
- Protecting the service from automated abuse (legitimate interest).
Your consent, and how to withdraw it
You may withdraw it at any time. In practice that means deleting your account: Syel cannot work without reading what you write, and we would rather say so plainly than offer you a button that changes nothing. Deletion is immediate and yours to perform, under Settings → Account.
How long we keep things
Your conversations stay readable as long as you keep them. That is a product decision: a friend who forgets on her own what you told her does not know you. Nothing is deleted automatically by the passing of time, unless you choose it in Settings.
You keep three acts, all immediate:
- Delete your conversations, your mirrors and patterns remain.
- Delete your account, everything goes, including the key that decrypted your messages, which makes the rest permanently unreadable.
- Export your data: a complete file, yours.
The spend ledger keeps its rows after an account is deleted, with no identifier: we know what the service cost, no longer whom it cost it for.
Who else touches it
Your data is hosted in Canada. To write the replies and the pages, part of the content needed is processed, for the time of the request, by our artificial intelligence, hosting, email, subscription and notification providers, some of which are located outside Québec and outside Canada. We entrust your data to no one else.
Syel never uses it to train an artificial intelligence model.
Transfers outside Québec and the European Union
Only the text needed for the reply goes to our artificial intelligence providers, for as long as it takes to read it: never your email address, your account or your IP address. With us, everything you share rests encrypted.
How it is protected
Per-user envelope encryption: a data key of its own for each account, sealed by a master key held outside the database. Row-level isolation in the database, so a query that forgot its condition still cannot reach someone else's account. No password exists anywhere: you come in with Google, with Apple, or through a link sent to your address.
Nobody at Syel reads your conversations. They are decrypted only to answer you and to write your pages; no internal tool displays them. Only a legal obligation could compel us to, and we would tell you if the law allows it.
Your rights
Access, portability, rectification, erasure, withdrawal of consent, objection, restriction. The first three are already buttons in the app; for the rest, write to support@syel.ai and we answer within 30 days.
You may complain to the Commission d'accès à l'information du Québec, or to the data protection authority of your country if you live in the European Union.
Minimum age
Syel is for people 18 and over. We do not knowingly collect information from minors; if we discover such an account, it is deleted.
In a crisis
The crisis screen works with no model call at all. It points to a maintained directory of help lines and to local emergency services, and it is identical with or without a subscription. It is never counted, never limited, never withheld. Nothing dials and nothing contacts anyone on your behalf: Syel shows you where to find help, you decide.
Changes
If this document changes in a significant way, we tell you in the app and ask for your consent again rather than treating your silence as agreement.
Contact
support@syel.ai Syel (NEQ 2282670977), 1625 De Maisonneuve Blvd. West, Montréal, Québec H3H 2N4, Canada