Privacy
How SlyOS handles your correspondence, in plain terms. Last updated 9 August 2026.
Your messages are used to draft replies for you and nothing else. They are never used to train models, never sold, never shared with other customers, and never sent anywhere without you pressing Send. You can export or delete everything at any time.
What we collect
Messages, threads and contact details from the channels you connect. Your account details and billing information. Product usage — drafts generated, edits made, features used — so the value dashboard can be accurate.
Why we hold it
To show you the messages that need an answer, to draft replies in your voice, and to remember the people and commitments that make those drafts useful. Nothing is processed for advertising or profiling.
Your voice profile
The profile that learns how you write belongs to your account alone. It is not pooled with other customers, not used to improve anyone else's drafts, and not used as training data for any model — ours or a provider's.
Storage and encryption
Data is encrypted in transit and at rest. Device channels such as iMessage and SMS are read on your own device — by the Mac companion, or by the Android app if you have granted it notification access. Access by our staff requires a logged, time-limited authorisation and only ever happens for a support request you have raised.
The Android app and your notifications
On Android, channels such as WhatsApp, Telegram, Signal and SMS have no way to let another app read them. SlyOS reads them through Android's notification access, which you grant yourself and can revoke at any time in Android Settings. The app explains this and asks before it sends you to that screen.
While it is on, SlyOS reads notifications only from the messaging apps you have connected — notifications from everything else on your phone are ignored. For each message it reads, it sends us the text of the message, the time it arrived, the sender's name and the conversation's title as your messaging app shows them. It does not send the rest of the conversation, your contacts, or anything from apps you have not connected.
This includes messages written by people who do not use SlyOS. We hold them for the same reason we hold anything else you receive — to show you what needs an answer and to draft a reply for you — and under the same terms: not pooled with other customers, never training data, and deleted with your account. Revoking notification access stops the reading immediately.
Sub-processors
SlyOS uses model and infrastructure providers to generate drafts and run the service. They process your content only to return a result to you, under agreements that forbid training on it or retaining it. The current list is available on request.
Retention and deletion
Disconnecting a channel stops collection immediately. Deleting your account removes messages, voice profile and memory within 30 days, backups included. Export is available at any time from Settings.
Your rights
You can access, correct, export, restrict or delete your data, and object to processing. Office and Elite customers can sign a DPA. Write to us and we will answer within 30 days.
Contact
Privacy questions go to support@belto.world, or use the contact form.