TV Calibrator Privacy Policy

Last updated: November 15, 2026

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In short

• No account, no ads, no analytics, no tracking.
• The camera is used only as a light meter. Nothing is recorded or uploaded.
• Your screens and measurements stay on your iPhone.
• If you turn on new-video notifications, we keep an anonymous push address for your iPhone, and nothing else. Turn them off and it’s deleted.

This policy covers the TV Calibrator app for iPhone, made by Slidebean (“we”). The app is open source, so anyone can check what it does in its source code.

What the app collects

No personal information. The app doesn’t ask for your name, email or any account, and it contains no advertising, analytics or tracking software. We don’t sell or share data with anyone, because we don’t have any.

The one thing we store is optional: if you turn on notifications for new Slidebean videos, we keep your iPhone’s push address (see Notifications).

The camera

The app uses the camera to measure light from your TV. Camera images are processed on your iPhone, a few frames at a time, and then discarded. No photos or videos are saved, and no camera data leaves your phone.

What stays on your iPhone

The screens (TVs) you add, your answers about their menus, your measurements and results, and the camera’s darkness reading are saved in the app’s own storage on your iPhone. They’re not sent anywhere. Deleting a screen deletes its data; deleting the app deletes all of it.

If you choose to export a screen or share a results image, it goes only where you send it.

What the app downloads

When it opens, the app may download small files from our server, which runs on Cloudflare: the list of supported iPhones, camera profiles, and links to the pattern videos. If you download the HDR10+ or Dolby Vision patterns, those files come from the same place. These requests don’t include anything about you or your measurements. Like any web request, they reveal your IP address to the server, and the camera profile your phone downloads reveals its iPhone model. We don’t use this information. Cloudflare may process it to run its service, under the Cloudflare Privacy Policy.

Notifications

Notifications are off until you turn them on, and you can turn either kind off any time in the app’s Settings or in iOS Settings.

• Re-check reminders (for example, “Time to re-check Living room TV”) are scheduled on your iPhone. Nothing is sent to us.
• New Slidebean videos. If you turn these on, the app sends your iPhone’s push token to our notification server, which runs on Cloudflare. A push token is an anonymous address that Apple gives the app so it can receive notifications. It doesn’t identify you, and we store it with nothing else except the date it was registered. We use it only to tell you when a new video goes live on the Slidebean YouTube channel. Notifications are delivered by Apple’s push service. If you turn this off, the token is deleted. If you delete the app, Apple stops accepting the token and our server removes it the next time it sends a notification.

YouTube

The test-pattern videos are on YouTube. When you open one from the app, it plays in the YouTube app or website, and Google’s Privacy Policy applies there.

Links to Slidebean

The app links to our YouTube channel and to the Untangled newsletter. These open in YouTube or your web browser. If you subscribe to the newsletter there, that happens on the newsletter’s own site and under its own privacy policy, not in the app.

Crash reports

If you’ve chosen to share analytics with app developers in your iPhone’s settings, Apple may send us anonymous crash reports. They help us fix bugs and don’t identify you.

Children

The app is not directed at children and doesn’t collect personal information from anyone.

Changes

If this policy changes, we’ll update this page and the date at the top.

Contact

Questions: calibrator@slidebean.com

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