Privacy Policy
Last updated November 8, 2026
Hush is a stress monitoring app for iPhone and Apple Watch, operated by OneClick Commerce ("we"). This policy explains what we collect, why, and the choices you have.
The short version
- Most of your health data stays on your iPhone and Apple Watch.
- We never sell your data or use it for advertising.
- Health data leaves your device only when you share with friends or choose to chat with Posy.
- You can delete your account and server data in the app at any time.
Health data from Apple Health
With your permission, Hush reads heart rate, heart rate variability, resting heart rate, respiratory rate, blood oxygen, sleep, steps, energy, distance, VO2 max, workouts, menstrual flow, date of birth and biological sex from Apple Health. With your permission, it writes workouts, mindful minutes, water and caffeine back to Apple Health.
Hush uses this data on your device to calculate your stress score, Bio Age and insights. We do not use Apple Health data for advertising or marketing, and we do not sell it or use it to build profiles for third parties.
Chatting with Posy
Posy is an AI. Before your first chat, Hush asks your permission. If you agree, your messages, first name, current stress score and what is driving it, HRV, resting heart rate, last night's sleep, cycle phase if you track it, and recent check-ins are sent to our servers and to Anthropic, the AI company that provides Posy, so a reply can be written. Your conversation is stored on our servers so Posy can keep context. You can turn this off anytime in the app under You, Chat with Posy.
Friends and Circles
If you add a friend, Hush stores the items you choose to share, such as your daily stress score, sleep and activity, so that friends can see them. You control each category and can pause all sharing in the app. Cycle details are off by default.
Account information
Hush creates an anonymous account for you automatically. We store your display name, optional username, avatar choice and sharing settings. If you use Sign in with Apple, we receive an identifier from Apple and your email address or Apple's private relay address.
Subscriptions and analytics
Apple processes all payments, and we never see your payment details. We use Superwall to manage paywalls, which receives purchase events, device information and an app-specific user identifier.
Who processes your data
- Supabase hosts our database and authentication.
- Anthropic generates Posy's replies, only if you allow it.
- Superwall manages paywalls and subscription analytics.
- Apple provides Apple Health, Sign in with Apple and payments.
How long we keep it
We keep your account data until you delete your account. Deleting it in the app, under You, Delete my account, permanently removes your profile, friends, shared updates and chat history from our servers. Data in Apple Health stays there and is controlled by you.
Your rights
You can access, correct or delete your data, and depending on where you live you may have additional rights under laws such as the GDPR and CCPA. Email us to make a request.
Children
Hush is not intended for children under 13, and we do not knowingly collect their data.
Changes
If we change this policy, we will update this page and the date above.