Last updated 30 July 2026 · Applies to hearth.symphia.ai, the Hearth web console and the Hearth iOS app.
Hearth is an AI guest-experience platform for hotels, operated by Symphia LLC ("Symphia", "we", "us"). Hotels use Hearth to message their guests across SMS, WhatsApp, email, web chat and voice, to run their guest CRM, and to automate parts of the stay.
This policy covers the Hearth marketing site, the Hearth web console and the Hearth iOS app. It does not cover a hotel's own website, its property-management system, or any other service the hotel connects to Hearth.
Which rules apply depends on whose information is involved. Hearth handles two very different categories of data, and we treat them differently.
| Whose data | Our role | What that means |
|---|---|---|
| Hotel staff | Controller | We decide how staff account data is handled, because the account relationship is between the hotel's team and us. This policy governs it. |
| Hotel guests | Processor | Guest information belongs to the hotel. We process it only on that hotel's instructions, under our agreement with them. The hotel's own privacy notice governs why a guest's data was collected in the first place. |
Put plainly: a guest's reservation, phone number and message history are the hotel's records, held by us on the hotel's behalf. We do not use them for our own purposes, we do not sell them, and we do not market to a hotel's guests for anyone else.
The iOS app is a staff tool. It is the same console in a native form: you sign in with your work email, and you see the guest conversations, reservations and tasks for the properties your hotel has given you access to.
The Hearth app asks for microphone access for one reason: dictating a reply. When you tap the microphone button in the message composer, the app records your speech and converts it to text so you can send it as a message.
Hotels can run an AI voice concierge on a phone line, and can review the resulting calls in Hearth. Where a hotel has enabled recording, the recording and its transcript are stored against that hotel's account and are visible to that hotel's staff only.
Recording is the hotel's decision and the hotel's legal responsibility. Consent and notice requirements for recording calls vary by jurisdiction. Hotels using Hearth are responsible for providing the disclosures their local law requires.
Hearth uses AI to draft replies, classify what a guest is asking about, route urgent issues to a human, and power the voice concierge. To do that, message content and relevant reservation context are sent to our AI providers.
We do not sell personal information, and we do not share it for cross-context behavioural advertising.
We share data only with service providers who help us run Hearth, each under contract and only for that purpose:
| Provider | Purpose |
|---|---|
| Amazon Web Services | Hosting, storage and database infrastructure (United States). |
| Symphia | Our own AI, messaging and voice engine. |
| Twilio | SMS, WhatsApp and voice delivery. |
| Anthropic, OpenAI | Language models used for drafting, classification and voice. |
| Apple | Push notification delivery, and speech recognition for dictation. |
| Email delivery providers | Transactional email — sign-in codes and notifications. |
| The hotel's own systems | Property-management systems (such as Mews) and booking channels the hotel connects. |
We may also disclose information where legally required, or in connection with a merger or acquisition — in which case this policy continues to apply to the transferred data.
No system is perfectly secure. If we become aware of a breach affecting personal data we will notify affected hotels without undue delay, as our agreements and applicable law require.
Depending on where you live, you may have the right to access, correct, delete, port or restrict the use of your personal information, to object to certain processing, and to withdraw consent. You also have the right not to be discriminated against for exercising these rights.
If you are a member of hotel staff, contact us using the details below and we will respond within the time your law allows.
You can ask your hotel's Hearth owner or manager to deactivate your account, which revokes access immediately, or write to us and we will action it. See Support for the full account-deletion request path.
The hotel you stayed with — not Symphia — decides what guest information is collected and why. Please contact the hotel first: they can amend or delete your record directly in Hearth, and they are the party whose privacy notice governs it. If you contact us instead, we will pass the request to the relevant hotel and support them in fulfilling it, but we cannot act on their records on our own initiative.
To stop receiving messages, reply STOP to any SMS or WhatsApp message. Opt-outs are recorded per channel and enforced immediately across automated journeys, campaigns and AI replies.
Hearth is a business tool for hotel staff and is not directed to children. We do not knowingly collect personal information from children under 16. If you believe a child's information has reached us, contact us and we will delete it.
Hearth is operated from the United States and our infrastructure is hosted there. If you or a hotel's guests are located elsewhere, information will be transferred to and processed in the United States. Where required, we rely on appropriate safeguards such as the European Commission's standard contractual clauses.
We will update this page when our practices change and revise the date at the top. If a change is material we will also notify hotel account owners by email. Continued use of Hearth after an update means you accept the revised policy.
Symphia LLC, operator of Hearth.
Privacy questions, data requests and account deletion: support@symphia.ai
General enquiries: hello@hearth.hotel