Privacy policy
Privacy
Effective October 9, 2026. The short version: your image never leaves your device.
Your images
When you choose an image, your browser loads it into memory and the model analyzes it on your device. The image is never uploaded, sent to a server, saved, logged, or stored by Cathra. When you choose another image or close the page, it is discarded.
What we collect
Cathra has no accounts, no sign-up, and no forms. We do not collect your name, email, health information, or the results of any analysis. Cathra does not use advertising, tracking cookies, or analytics.
If you email us
If you contact us by email, we receive your email address and whatever you choose to include. We use it only to reply, and we never sell or share it.
Hosting and libraries
Like any website, the services that deliver Cathra’s files receive standard technical information when your browser requests them, such as your IP address, browser type, and the time of the request. These are:
- Vercel, which hosts the website and the model files.
- jsDelivr, a public CDN that delivers the TensorFlow.js and Teachable Machine libraries.
These requests are only for Cathra’s own code and model. Your image is never part of them. Each provider handles this information under its own privacy policy.
Children
Cathra is not directed to children under 13.
Changes
If this policy changes, we will update it on this page and change the effective date above.
Contact
Questions about privacy: paultaaron@icloud.com