# PanelCheck > PanelCheck is a TV display inspection app with remote-controlled visual test patterns. It is an inspection utility, not a calibration instrument. Apple TV and Android TV / Google TV have official store listings. For the Fire TV build, check the linked Amazon listing for current availability. Roku is in development and has no public installation link here. Four tests are free; five more use a one-time in-app unlock. Store listings determine current device compatibility, regional availability, and localized prices. ## Product and documentation - [Product facts](https://panelcheck.app/ai.md): Features, requirements, limitations, pricing model, installation links, and common questions in Markdown. - [Product website](https://panelcheck.app/): Product overview and official store links. - [Pattern guide](https://panelcheck.app/guide/): All nine tests, remote controls, technical interpretation, and limits of visual inspection. - [FAQ](https://panelcheck.app/support/#faq): Free tests, purchases, platforms, offline use, and calibration questions. - [Support](https://panelcheck.app/support/): Troubleshooting and official support contact. ## Optional - [Privacy policy](https://panelcheck.app/privacy/): Local preferences, no accounts, advertising, analytics, or tracking; store-handled payments. - [Terms of use](https://panelcheck.app/terms/): Informational results and platform purchase terms.