TV Calibrator turns your iPhone’s camera into a light meter, so you can calibrate your TV’s picture with free test-pattern videos and step-by-step directions for your TV’s own menus.
Need help? Email calibrator@slidebean.com. Tell us your iPhone model and your TV’s brand and model, and what step you’re on.
Frequently asked questions
Do I need a colorimeter or any other equipment?
No. Your iPhone is the meter. A stand or something to lean it on helps keep it steady while it reads the TV.
Which iPhones work?
Any iPhone running iOS 18 or later. Supported models have their own camera profile, matched in advance to a professional colorimeter. Other models use a standard profile and still work, but the app marks their readings as approximate. New profiles are added without an app update.
How accurate is it?
Close enough to make a visible difference, but an iPhone camera is not a professional meter, and the readings won’t match one exactly. The app tells you when a reading is approximate.
Does the app change my TV’s settings?
No. The app never connects to your TV. It tells you which setting to change in your TV’s menus, which way to move it, and when it’s on target. You make the changes with your TV remote.
Where are the test patterns?
SDR and HDR10 patterns are in the TV Calibration Videos playlist on the Slidebean YouTube channel. Play them in your TV’s own YouTube app. HDR10+ and Dolby Vision patterns are a separate download, linked in the app, because YouTube doesn’t support those formats.
Which TVs are supported?
The app has menu directions for LG, Samsung, Sony, TCL, Hisense, Panasonic, Philips, Vizio, Toshiba, Sharp and Roku TVs. If your brand isn’t listed, choose “Other.” The steps are the same, and most TVs keep these settings under Picture › Advanced or Expert settings.
My TV’s menus don’t match the app.
Menus change between models and software updates. Email us your TV model and what your menu says, ideally with a photo, and we’ll update the directions.
The app didn’t pick up the video.
Start the video from the beginning and let any ad finish. Hold the phone a hand’s length (15–30 cm) from the screen, pointed at the centre, in a dark room. Make sure the video matches the format you picked in the app (SDR or HDR10).
Should I use Filmmaker Mode?
Yes, if your TV has it. Filmmaker Mode (or Cinema, Movie or Calibrated mode on some TVs) is the closest starting point to how films are meant to look, and the app calibrates from there.
Can I try it without a TV?
Yes. On the home screen, tap the demo. It simulates a TV and gives you on-screen buttons in place of the remote, so you can learn the steps first.
Can I undo my changes?
Yes. Write down your TV’s original settings before you start, or use your TV’s reset option for the picture mode. Calibration only changes picture settings and can’t harm your TV.
How do I turn notifications off?
In the app’s Settings, or in iOS Settings › Notifications › TV Calibrator.
How do I delete my data?
Everything is stored on your iPhone. Delete a screen in Manage Screens, or delete the app to remove all of it.
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