Privacy Policy
Effective August 16, 2026
Knock is a small encouragement app made by Performance Marketer. This policy describes, plainly and accurately, how the app handles your information.
The short version
Your content stays on your device unless you connect with a friend. Notes, history, and local friends are stored only on your phone. If you link with another Knock user to exchange real knocks, the minimum needed to deliver them — your first name, the friend link, the knocks you send (including any voice clip you attach), and a push notification token — passes through and is briefly stored on our server.
What stays on your device
- Your friends, circles, notes, moments, and knock history
- Voice clips you record but don't send to a linked friend
- Your settings and subscription state
What our server stores (only if you use online features)
- The first name you entered during setup and a random account ID
- Friend links you create by sharing or redeeming a link code
- Knocks you send to linked friends — the knock count, feeling, optional note, and any voice clip you attach. Notes and voice clips are deleted from the server as soon as the knock reaches your friend's device; a minimal delivery record (no content) is kept briefly to prevent duplicate deliveries
- A device push token, used solely to notify your friend that you knocked
If you never link with a friend, the app works fully offline and none of your content leaves your device.
What we do not do
- No passwords, emails, or phone numbers required
- No analytics, advertising, or tracking of any kind
- No selling or sharing of data with anyone
- No third-party SDKs that collect data (push notifications are delivered through Apple/Google and Expo's push service)
Microphone
The app asks for microphone access only if you choose to record a voice knock. Recording is optional — you can skip it. Recordings are saved on your device; a recording is uploaded only when you send it as a knock to a linked friend, so it can play on their device.
Deleting your data
Open Settings → Delete My Data inside the app to permanently erase everything the app has stored on your phone. Deleting the app also removes its local data. To have server-side data (your account, friend links, undelivered knocks, and push token) deleted, email eric@performancemarketer.com and we will remove it promptly. Notes and voice clips in delivered knocks are purged from the server automatically on delivery.
Children
Knock is not directed at children and collects only the minimal information described above (a first name and content you choose to send) from any user.
Changes to this policy
If a future version of the app changes how data is handled (for example, adding optional online features), we will update this policy and its effective date before that version is released.
Contact
Questions about privacy? Email eric@performancemarketer.com.