Privacy Policy
Last updated: October 7, 2026.
The short version
NeckNerd analyzes your webcam video entirely on your own computer. Video frames are
processed in memory to estimate your posture and are never recorded, stored, transmitted,
or seen by us or anyone else. NeckNerd does not require an internet connection to watch
your posture - only to occasionally check that your subscription is active.
What we do collect
-
Payment & billing information - handled entirely by Stripe, our
payment processor. We never see or store your card details. Stripe's own privacy policy
governs that data.
-
Email address - collected at checkout so we can send your license key
and billing receipts.
-
License key & subscription status - a randomly generated key tied to
your subscription, stored on our servers so the app can verify it's still active.
-
Free trial record - when you start the free trial, the app sends us an
anonymous, one-way scrambled (hashed) identifier derived from your computer, along with the
date the trial started. We use it only so that reinstalling the app doesn't restart the
trial. We can't turn it back into your Windows machine ID, and it isn't linked to your
name, email, or anything else about you. It is deleted after two years.
What we never collect
- Webcam video or images - processed locally and immediately discarded.
- Posture measurements, biometric data, or health information of any kind.
- Your posture history, screenshots, or usage patterns beyond basic app settings stored on your own device.
Local data on your device
NeckNerd stores your calibration, sensitivity settings, and license key locally in
%LOCALAPPDATA%\NeckNerd\. This data never leaves your computer except for
the minimal license and free-trial checks described above (which send only your license
key or the scrambled trial identifier, never any posture or video data).
Third parties
We use Stripe for payment processing, Cloudflare for hosting and backend
infrastructure, and Resend to send your license key by email. Each has its own privacy
policy governing the data they process on our behalf.
Contact
NeckNerd is operated by NeckNerd LLC, a South Dakota limited liability company.
Questions about this policy? Contact us at
support@necknerd.app.