ShieldKinPrivacy policy
Last updated: 19 October 2026
ShieldKin is a wristband, an optional ring and a mobile app that watch over a person’s health readings and tell the family who look after them when something looks wrong. This policy explains what we collect, why, who helps us run the service, and the choices you have. ShieldKin is still in development and testing; this policy describes the service as it runs today and will be updated before launch if anything changes.
Who we are
ShieldKin, the developer named on our app store listings. Questions about your data: privacy@shieldkin.com.
What we collect
- Your account: name, email address, phone number (checked with an SMS code), your password (stored only as a secure hash) or your Google or Apple sign-in, your language, and the consents you gave.
- Readings from the wristband or ring: pulse, blood oxygen, skin temperature, movement and falls, with the time and how good the signal was; alerts, and how they were answered.
- Health details you choose to add: for example age, height and weight, blood type, allergies, conditions, medicines and emergency notes for your medical ID.
- Your circle: the carers you invite (their name and email or phone number) and the people you look after.
- Devices: your wristband’s identity and security keys, and your phone’s notification token.
- Subscription status: whether a subscription is active, from Apple, Google and RevenueCat. We never see your card details.
- Security records: sign-ins and sensitive actions, such as who opened a person’s health data, data downloads and account deletion.
There are no advertising or analytics trackers in the app or on this website, and this website sets no cookies.
Why we use it
- To run ShieldKin: show readings, notice when something may be wrong, and alert your circle by notification, text message and phone call.
- To learn what is usual for each person, so alerts are meaningful. This stays in your account.
- To keep the service and your account secure, and to manage subscriptions.
We process health data only with your explicit consent, which you give in the app. You can withdraw it at any time by deleting your account. We never sell data and never use it for advertising.
Who can see it
- You.
- The carers you add to your circle: your status, readings, alerts and medical ID.
- Service providers who run parts of ShieldKin for us, only for that purpose:
Provider What for What they see Hetzner Online (Germany) Our servers and database The data stored by ShieldKin Google Firebase Cloud Messaging Phone notifications Your phone’s notification token and a short notice, never readings Twilio Sign-in codes, alert texts and calls to carers Phone numbers, the person’s name and the kind of alert, never readings RevenueCat, Apple, Google Subscriptions Your account ID and subscription status Google, Apple Sign-in, if you choose it What you allow when you sign in Cloudflare This website and our email Website requests and emails you send us
Our servers are in Germany, in the European Union. Some providers may process data in other countries under their own safeguards.
How long we keep it
We keep your data while your account exists. When you delete your account, your account, health details, readings, alerts, devices, circle links and consents are deleted straight away. Security records are kept to protect the service and meet legal duties; they do not contain your readings. See how to delete your account.
Your choices and rights
- See and download everything we hold about you: in the app, Account → Download my data.
- Correct your details in the app, or ask us.
- Delete your account: in the app, Account → Delete my account, or write to us.
- Choose your circle and change it at any time.
- Complain to the data protection authority where you live.
Security
Connections are encrypted. Alerts from the wristband are digitally signed so they cannot be faked. Downloading your data or deleting your account needs you to confirm it is you. Access to health data is recorded.
Children
ShieldKin is meant for adults.
Changes
If this policy changes we will update this page and its date, and tell you in the app about important changes.