Lina is a personal AI assistant operated by MindHorizon Consultancies FZCO (the operator). This policy covers people who use Lina (users) and people whose data reaches Lina through a user's connected services (for example, someone who emails a user or messages their business WhatsApp number).
For each user: the messages they exchange with Lina over the web, Telegram, WhatsApp and the voice app; the facts and documents Lina keeps as memory; the instructions the user writes; and data read from services the user has connected (email, calendar, documents, accounting, CRM, tasks, messaging, health and training platforms). This data is used only to answer that user and to keep their memory and notes. It is never used to answer another user, never sold, and never used for marketing.
Lina reads the tone of what each user sends her: how they sound on voice calls and in voice notes, and how their typed messages come across. A tone reading is a short estimate (for example calm, tired or happy, with how positive and how animated it seems), made by the AI model providers below from that user's own messages and audio only; the audio itself is not stored. Readings are shown to that user on their own conversation pages, kept with the transcripts they describe, and never shared with another user. They are estimates of tone, not assessments of health or character.
Every user has their own workspace. Data is stored with the workspace it belongs to and every read and write is limited to that workspace. The operator's own workspace is subject to the same rules.
Where a user connects a WhatsApp Business number, messages, contact names and media received on that number are stored so the user can read, search and reply to them. They are handled under WhatsApp's Business Terms and are never sold, shared with third parties, used for marketing or used to train models.
To generate replies, message text and relevant memory are sent to AI model providers (Anthropic, OpenAI) under terms that prohibit them from retaining the data or training on it. Payments are processed by Stripe; the operator never sees card details. Sign-in links are sent by email through Resend.
If you sign up on the homepage while Lina is full, the operator keeps the email address you give only to contact you about access to Lina, and deletes it on request.
Data is stored encrypted at rest on infrastructure in the European Union. Conversation transcripts are kept for 90 days. Memory and documents are kept until the user edits or deletes them. Credentials for connected services are stored encrypted and can be revoked by the user at any time from within Lina. When a workspace is deleted, its data is removed.
For each workspace the operator keeps a ledger of usage and payments (amounts, dates, the model or service used). Card details are held by Stripe only.
Users can see, edit and delete their memory and documents within Lina and can ask for their whole workspace to be deleted. Anyone whose data has reached Lina through a user's connected services can ask the operator what is held and for it to be deleted by writing to brian@mindhorizonconsulting.com. Requests are answered within 30 days.
Last updated 27 September 2026.