SINAN — PRIVACY POLICY
Last updated: 11 October 2026
This policy explains what information Sinan collects, why, who can see it, how it is protected, and how you can delete it. It covers the Sinan mobile app, the clinic dashboard (app.sinansmile.com) and the website (sinansmile.com) — together, "the Service".
Short version: we collect only what the Service needs to work. We do not sell your information, we show no advertising, and we do not track you across other apps or websites.
1. WHO WE ARE
Sinan ("Sinan", "we", "us") operates the Service from Lebanon. The Service lets patients find a dentist and request appointments, and gives dental clinics the software they use to run their practice.
Contact for anything in this policy: info@sinansmile.com
2. TWO KINDS OF RECORDS
Your Sinan account. Your profile, the medical history you fill in yourself, your favourite doctors and your booking requests. Sinan is responsible for these.
A clinic's patient file. When a clinic treats you, it keeps its own record of your care: clinical notes, dental chart, treatment plans, and what was charged and paid. That record belongs to the clinic, which is responsible for it as your healthcare provider. Sinan stores it on the clinic's behalf and uses it only to provide the Service to that clinic.
3. WHAT WE COLLECT
Information you give us
- Account details: your full name, phone number and e-mail address. If you choose a password, we store only a protected (hashed) form of it and can never read it.
- Sign in with Google or Apple: we receive the name and e-mail address that Google or Apple share with us, and an identifier for your account with them. If you use "Hide My Email" with Apple, we receive Apple's private relay address instead of your real one.
- Optional profile details: a profile photo, your governorate and address, date of birth and gender.
- Health information: the medical history you enter (allergies, chronic conditions, current medications, smoking and other habits) and your dental chart.
- Bookings: the appointments you request, change or ask to cancel, waiting-list requests, your favourite doctors, and any rating and comment you write about a visit.
- Messages you send to our support.
Information clinics record about you
- Clinical notes, dental chart, treatment plans, appointments and their outcome, amounts due and paid, instalments and laboratory cases. If you have a Sinan account linked to that file, the clinic may choose to show you your balance in the app.
Information about doctors and clinic staff
- Name, phone number, e-mail address, photo, specialty, clinic name, address and working hours, treatments and prices, and schedule. A doctor's public profile (name, photo, specialty, clinic, hours, prices, ratings) is visible to patients in the app.
- The package a doctor subscribes to and the record of what was paid to Sinan for it.
Information collected automatically
- A notification token for your device, if you allow notifications, so that we can send you reminders and updates.
- Security records: the time, the action and the IP address of sign-ins and of sensitive actions, kept to protect accounts and to investigate misuse.
- Your language preference.
Device permissions — each is optional and asked only when needed
- Location: only if you tap "Use my location" while creating your profile. The app reads your approximate location once, your phone turns it into the name of a governorate, and only that governorate is saved. Your coordinates are not sent to Sinan and are not stored.
- Photos: only the single picture you pick as a profile photo. The app does not read the rest of your library and does not use the camera or the microphone.
- Notifications: appointment confirmations, reminders and account messages.
What we do not collect
We do not collect your contacts, your precise or background location, advertising identifiers, or your activity in other apps and websites. The Service contains no advertising and no third-party analytics or tracking software.
4. HOW WE USE YOUR INFORMATION
- To create and secure your account and sign you in.
- To let you find doctors, request appointments, and receive confirmations and reminders.
- To give the clinics you book with the information they need to treat you safely.
- To give clinics the tools to keep their records, schedules and accounts.
- To send verification codes and account notices by e-mail or WhatsApp.
- To answer support requests.
- To prevent fraud and abuse and to keep the Service secure.
- To meet legal obligations.
We never use health information for advertising, marketing or profiling, and we never sell or rent personal information to anyone.
5. WHO CAN SEE YOUR INFORMATION
Clinics you book with. When you request an appointment, that clinic sees your name, contact details, the medical history you entered and your dental chart, so the dentist knows your situation before treating you. You fill it in once, and it is shown to each clinic you choose to book with.
Inside a clinic. Dentists see the clinical record. Front-desk staff see what is needed to manage appointments — your name, contact details and bookings — and do not see clinical notes, medical history, the dental chart, prices or balances.
Between clinics. A clinic never sees your file, appointments or payments at another clinic.
Other patients. If you write a review, it appears on the doctor's profile with your first name and the first letter of your family name, your rating and your comment. Nothing else about you is public.
Companies that help us run the Service. They process information only on our instructions and only as far as needed:
- cloud hosting and database providers, with servers in the European Union (Germany);
- Google Firebase, for authentication;
- an e-mail delivery provider, for verification codes and account notices;
- WhatsApp Business (Meta), where codes are sent by WhatsApp;
- Apple, Google and Expo notification services, to deliver notifications to your device;
- Apple and Google, when you choose to sign in with them.
Authorities. We disclose information when the law requires it, or when it is necessary to protect someone's safety or to defend legal rights.
We do not share information with advertisers or data brokers.
6. WHERE YOUR INFORMATION IS KEPT
Your information is stored on servers in the European Union. Some of the providers listed above may process limited information (for example, an e-mail address in order to deliver a message) in other countries, including the United States. Wherever it is processed, it is covered by the protections described in this policy.
7. HOW LONG WE KEEP IT
- Your account and the information in it: until you delete your account.
- A clinic's patient file: for as long as the clinic keeps it, according to the clinic's professional and legal duties to retain medical and accounting records.
- Security records: for a limited period needed for security and for resolving disputes.
- Backups: copies are overwritten automatically within a short period, no longer than 30 days.
8. HOW WE PROTECT IT
- All communication between the app, the dashboard and our servers is encrypted (HTTPS/TLS).
- Data is encrypted at rest by our hosting providers.
- Each clinic's records are isolated from every other clinic's at the database level.
- Access inside a clinic depends on the person's role.
- Passwords are stored only in hashed form. Two-step verification is available, and is mandatory for Sinan's own administrators.
- On your phone, your session is kept in the device's secure storage (Keychain on iPhone, Keystore on Android), and the app hides its content in the app switcher.
- Your health information is never stored in iCloud by the app.
- Sensitive actions are recorded so that misuse can be detected.
No system is perfectly secure. If a breach affects your information, we will inform you and the clinics concerned without undue delay.
9. YOUR CHOICES AND YOUR RIGHTS
See and correct. You can view and edit your profile and medical history in the app at any time.
Delete your account. In the app: Profile → Delete my account. Deletion is permanent and takes effect immediately. It removes your profile (name, phone, e-mail, photo, governorate, address, date of birth, gender), your password and sign-in details, your medical history and shared dental chart, your favourite doctors, the reviews you wrote, your notifications and your registered devices.
What remains after deletion: the patient file held by each clinic that treated you, with its appointments, treatment plans and payments. That file is the clinic's legal record of the care it provided; it is disconnected from your account and no longer linked to a Sinan user. To ask about that file, contact the clinic.
If you own a clinic on Sinan, the clinic must be transferred or closed first; write to us and we will do it with you.
If you cannot open the app, write to info@sinansmile.com from the e-mail address of your account and we will delete it for you.
Permissions. You can turn notifications, location and photo access on or off at any time in your phone's settings.
Other requests. You may ask us for a copy of your information, for a correction, or to stop a particular use. Write to info@sinansmile.com; we answer within 30 days. Depending on where you live, you may also have the right to complain to your data protection authority.
10. CHILDREN
The Service is not directed to children under 13, and we do not knowingly allow them to create an account. Anyone under 18 should use the Service only with a parent or guardian, who may book and manage care on their behalf. If you believe a child has created an account, write to us and we will delete it.
11. CHANGES TO THIS POLICY
When we change this policy, we update the date at the top and publish the new version here and in the app. If a change is significant, we will tell you in the app or by e-mail before it takes effect.
12. CONTACT
Sinan
E-mail: info@sinansmile.com
Website: https://sinansmile.com
© Sinan. All rights reserved.