Privacy

Your breath, sleep, and journal data stay on your device. Anonymous usage events help us improve the app. We don't sell anything and we don't track you across apps.

What stays on your device

Your sessions, journal entries, settings, and any HRV, heart rate, respiratory rate, VO2Max, or sleep values we read from Apple Health are stored locally using Core Data. They are not uploaded to our servers.

If you have iCloud Backup enabled, this data may be included in your personal iCloud backup, which is managed entirely by you and your Apple ID — we don't have access to it.

What we read from Apple Health

With your explicit permission, Sereze reads age, gender, HRV, resting heart rate, heart rate, respiratory rate, VO2Max, sleep, and movement to tailor breathing recommendations to the moment. Sereze writes Mindful Minutes back to Apple Health when you finish a session.

You can revoke access at any time in Settings → Health.

Anonymous analytics

Sereze records a small number of anonymous events (for example, that a session started and ended) using PostHog so we can understand which sessions help and when. No name, email, location, Apple Health data, journal text, or device identifier is sent. You can opt out in the app's Settings.

AI features

Optional AI features (such as Explore recommendations, insights, and journaling assistance) send only the text you choose to share to OpenAI, Anthropic, or xAI to generate a response. Nothing from Apple Health, your sessions, or your journal is sent unless you explicitly tap an AI action. Providers do not train on your input.

These recommendations are general in nature and should not replace medical advice from a healthcare professional.

Subscriptions

Subscriptions are managed through the Apple App Store. We don't process or store any payment details. Your active subscription type (e.g. monthly or yearly) is validated directly through the App Store using Apple's secure APIs. For subscription questions or cancellations, visit your Apple ID settings under Subscriptions.

Medical disclaimer

Sereze is a wellness app, not a medical device. It does not diagnose, treat, or prevent any condition. If you have a heart, lung, or anxiety condition — including high blood pressure, heart disease, or respiratory issues — talk to your doctor before starting breathwork.

If you experience discomfort, dizziness, or any adverse symptoms while using the app, stop immediately and consult a healthcare provider.

Liability

Under no circumstances should the content or exercises within this app be considered medical advice. We disclaim any and all liability, whether direct, indirect, implied, punitive, special, incidental, or consequential, arising from the use or inability to use the content or exercises within this app.

Your rights

You can delete your local data at any time from Settings. Sereze complies with the General Data Protection Regulation (GDPR) in Europe and applicable data protection laws in other regions, including India. For privacy questions, please reach out via our support page.

Last updated: May 2026