Your privacy is important to us. We collect sleep data, device information, and account details you provide, including sleep duration, quality scores, and alarm preferences, in order to deliver our core service. Your data is used exclusively to provide personalized sleep insights, improve app performance, and send you relevant notifications. We will never use your data for advertising and we will never sell your personal data to third parties. We only share data with trusted service providers who help us operate the app, such as cloud storage and analytics partners, and all partners are bound by strict data agreements. All data is encrypted and stored on secure servers and we retain your data for as long as your account is active or as required by law. You have the right to access, correct, or delete your personal data at any time through the app or by contacting our support team. We use essential cookies only to keep you logged in and remember your preferences — we do not use tracking or advertising cookies of any kind. If you have any questions about how we handle your data, reach out to us at privacy@exella.app and we will respond within 48 hours.