Privacy Policy

1. Introduction

LinTech ("we", "our", or "us") operates the SleepAlly mobile application. This Privacy Policy explains what data we collect, how we use it, and how we protect it when you use our app. Your privacy is fundamental to our design philosophy — we built SleepAlly to keep your data on your device.

2. Data We Collect

SleepAlly collects the following types of information, the vast majority of which are stored locally on your device:

• Personal information entered during onboarding: name, gender, age, weight, height (stored on-device only)
• Sleep session data: start/end times, duration (on-device only)
• Snore event data: timestamps, duration, optional short audio clips per episode (on-device only)
• Habit diary entries: food logs, medication, mood, exercise (on-device only)
• Subscription status: premium active/inactive — verified via Apple StoreKit on-device; no payment card details are stored by us
• AI Chat: conversation history on-device; when you send a message, contextual sleep statistics may be transmitted to an AI inference provider (see Section 5)

3. How We Use Your Data

We use your data exclusively to provide app features:

• To provide app features (snore detection, analytics, AI chat)
• To personalise responses and insights
• To verify premium subscription access for unlimited Start Night sessions
• To correlate habits with sleep quality

We do NOT sell, rent, or share your on-device database with advertisers or third parties.

4. Data Storage & Security

• Primary storage via Apple SwiftData on your device
• No mandatory cloud account required for core sleep and snore features
• Your device is protected by iOS encryption (Face ID / passcode)
• Audio clips for snore events are stored locally and never uploaded

5. Third-Party Services

SleepAlly integrates with limited third-party services:

• Apple In-App Purchase / StoreKit: Subscription billing and receipt validation are handled by Apple. See Apple's Privacy Policy at apple.com/legal/privacy.
• AI inference: When using AI Chat, queries may be sent to an AI provider containing contextual sleep statistics from your sessions. These queries are designed without requiring your name, email, or persistent advertising identifiers in the payload.
• YouTube: If you use a YouTube URL for fall-asleep audio or Snore Stop music, Google's player and privacy policies apply while streaming.

6. Subscriptions & Payments

SleepAlly offers optional auto-renewable subscriptions:

• Premium Yearly ($29.99/year) — includes a 7-day free trial for eligible new subscribers
• Premium Monthly ($4.99/month) — no free trial

Payment processing is handled entirely by Apple through your Apple ID. LinTech does not collect or store credit card numbers or bank details. Subscription status is checked on-device via StoreKit to unlock unlimited Start Night sessions after your free trial uses are exhausted.

After a free trial on Premium Yearly, billing continues at the listed price unless you cancel at least 24 hours before the renewal date. Manage or cancel subscriptions in Settings → Apple ID → Subscriptions on your device. Restore Purchases is available in the app for users who reinstall or switch devices.

7. Microphone Access

• Used for on-device snore detection during an active sleep session when Snore Monitoring is enabled
• Optional short WAV clips per logged episode are stored locally only
• There is no continuous cloud recording — all audio processing happens on your device

8. Children's Privacy

SleepAlly is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such information, please contact us so we can delete it.

9. Your Rights

• You can delete stored snore log or habit data from Profile > Stored Data
• Deleting the app removes all locally stored data
• EU/EEA users: Rights under GDPR apply (access, rectification, erasure, portability, objection)
• California users: Rights under CCPA apply

10. Changes to This Policy

We will update the effective date when this policy changes. Continued use of the app after changes constitutes acceptance of the updated policy. We encourage you to review this policy periodically.

11. Contact

If you have questions about this Privacy Policy or our data practices, please contact us: