FacegridPrivacy Policy
Effective: 4 October 2026. Applies to the Facegrid iOS app, published by Stackframe Studios Private Limited ("we").
The short version
Your 3D face scans are made and kept on your iPhone. We never receive your face mesh, depth data, camera images or measurements. We collect anonymous usage events to improve the app, and if you sign in, an account ID from Sign in with Apple. We don't track you across apps or websites, and we don't sell anything about you.
Your face data stays on your iPhone
- What the app measures: with the TrueDepth camera, Apple's ARKit gives the app a 3D model of your face (1,220 points), head angle, distance and expression values, and depth readings. The app turns these into measurements such as jaw angle, symmetry and under-eye puffiness, and a face-shape estimate.
- Where it is kept: only in the app's storage on your iPhone. It is never uploaded to us or to anyone else, never sent to analytics, and never used to identify you or to unlock anything.
- Camera images: the live camera picture during a scan is shown on screen only. It is not saved or sent.
- How long: until you delete it. Profile → Your data → Delete all my data erases every scan, measurement and answer on the phone, and deleting the app removes it too.
- Your answers in the app (first name, age band, goals, hair and beard answers, routine history) also stay on your iPhone.
Anonymous usage analytics
We use PostHog (servers in the United States) to see which features are used and where people get stuck, for example "first scan completed", "routine day completed" or a thumbs up on a haircut suggestion. Events carry app details such as a screen step or a style name, and where you heard about us if you told us, plus a random ID created on install. They never contain face data, measurements, photos, your name or your email. We don't record your screen and we don't share this data for advertising.
Your account (optional)
If you sign in with Apple, we store an account ID from Apple and your subscription status with our backend provider, Supabase. We don't ask Apple for your name or email. You can delete your account in Profile → Your data → Delete account: it removes your account and subscription record from our server, revokes the Sign in with Apple link, and erases the data on your iPhone.
Purchases
Subscriptions are handled by Apple. We receive confirmation that a subscription is active so we can unlock Pro features. We don't receive your payment details.
Your rights
You can export everything the app holds about you (Profile → Your data → Export my data) and delete it at any time, as above. For anything else, including questions about data on our server, email us and we'll reply within 30 days.
Permissions
- Camera: to make the 3D scan, as described above.
- Notifications: only if you turn on routine or weekly-scan reminders. They are scheduled on your iPhone.
Not medical advice; adults only
Facegrid is for information only and is not a medical device or medical advice. It is for adults 18 and over and is not directed at children. We don't knowingly collect data from anyone under 18.
Changes
If we change what we collect, for example adding an optional skin-photo analysis, we'll ask for your consent in the app first and update this policy and the App Store privacy label before that version ships.
Contact
Stackframe Studios Private Limited · contact@stackframes.dev