Privacy Policy

• Name and email address — used for account creation, authentication, and essential service communications.
• Profile picture — optional; sourced from Google Sign-In if you choose to connect it.
• Authentication identifiers — securely issued tokens that keep you signed in without storing passwords on our servers.

This is the core of Mio Sync and is stored with the highest protection:

• Mood entries — ratings, notes, tags, and time-stamped check-ins.
• Hydration logs — water intake amounts, timestamps, and trends.
• Nutrition logs — meals, photos (if you choose), calorie estimates, and macro breakdowns.
• Activity & sleep — steps, exercise, meditation sessions, and sleep notes.
• Chat history with Unwind — your conversations with the AI buddy, stored so it can remember context and reference past discussions.

You may choose to provide additional context to improve personalization:

• Age, weight, height, and gender.
• Dietary preferences, allergies, and conditions.
• Wellness goals (e.g., daily water target, mindfulness minutes).

None of this is required. You can use Mio Sync fully without providing any of it.

• App version and OS version — for compatibility and bug fixes.
• Crash logs and diagnostics — only when you opt in to share them.
• Notification preferences — stored locally and synced with your account.

All wellness data you log is stored locally on your Android device using encrypted local databases. You can view, edit, and analyze your data entirely without an internet connection. Your local data is protected by Android's app sandbox and, where supported, device-level encryption.

When you are online, your local data syncs to our secure cloud infrastructure. Sync is:

• Encrypted in transit using TLS 1.3.
• Encrypted at rest using AES-256.
• Differential — only changes since the last sync are transmitted, minimizing data exposure.
• Resilient — if a sync is interrupted, it resumes cleanly without data corruption.

You are never locked out of your own data. Even if our servers become temporarily unavailable, you retain full read/write access to everything on your device. When connectivity returns, sync catches up automatically.

• Context window — recent chat history and wellness logs are included in the prompt so Unwind can reference your day and past conversations.
• System prompt — includes your 3-day mood trend, hydration level, recent meals, and steps to ground responses in your actual state.
• Memory summaries — rolling summaries of conversations are stored so Unwind can recall topics from days or weeks ago.

Unwind's responses are generated using third-party AI services (e.g., Google AI). When you send a message:

• Your message and the relevant context are transmitted securely to the AI provider.
• Providers process the data only to generate a response and do not retain it for model training unless they have separate consent mechanisms, which we do not authorize on your behalf.
• We select providers with strong data protection commitments and evaluate them regularly.

Unwind is a wellness companion, not a therapist, doctor, or crisis counselor. It cannot diagnose conditions, prescribe treatment, or replace human professionals. See Section 9 for crisis resources.

• You generate an invite code from your Settings. This code is a single-use, time-limited token.
• You share the code directly with the person you trust. We do not broker introductions or suggest contacts.
• The caregiver creates a read-only account linked to yours. They can see your wellness dashboard but cannot edit, delete, or add data.
• You can revoke access at any time from Settings. Revocation is immediate and retroactively hides all previously shared data from the caregiver's view.

Caregiver access is enforced at the database layer using Row-Level Security (RLS). Even if the app's frontend were compromised, the database would still reject any write attempt from a caregiver account. Privilege escalation is structurally impossible.

• Active accounts: Your data is retained for as long as your account remains active, so you can build long-term wellness insights.
• Inactive accounts: After 24 months of inactivity, we may send you a notification offering data export or deletion. If you do not respond, we schedule automatic deletion after an additional 6 months.
• Caregiver relationships: When access is revoked, the caregiver's view of your data is immediately purged.

You can delete your account and all associated data at any time:

• Self-service deletion — available in Settings > Account > Delete Account. This is permanent and irreversible.
• Email request — send a deletion request to support@miosync.live from your registered email. We process verified requests within 30 days.

Deletion removes your data from live systems and backups within 90 days. We may retain minimal transaction records if required by law (e.g., tax or fraud regulations), but these will not contain wellness content.

Mio Sync provides one-tap access to crisis helplines from the Safe Space screen:

These are displayed prominently when distress is detected or at any time via the SOS button. We do not monitor these calls or share the fact that you contacted a helpline with caregivers or third parties.

• Distress detection — If a mood log or chat message signals severe distress, the app dims non-essential UI and surfaces calming tools (breathing exercises, grounding prompts, and crisis numbers). This is a local, on-device response; the data is not sent to caregivers or flagged to us automatically.
• No automated alerts — We do not send automatic wellness alerts to caregivers, employers, or emergency services based on your content. The 48-hour inactivity check is the only automated caregiver notification, and it does not disclose any log content.
• Human review — We do not manually review your private chat history or mood notes. AI processing is automated and anonymized where possible.

Mio Sync is an informational wellness tool. It does not provide medical advice, diagnosis, or treatment. Always seek the advice of a qualified health provider with questions about a medical condition. Never disregard professional advice because of something you read or experienced in the app.