Tubester lets you play the Hitster music board game using YouTube instead of a Spotify subscription. Point it at the QR code on a card and it opens the matching song in an external player of your choice, such as NewPipe or the YouTube app. A Hitster QR code contains only the card's identity, not the song. Tubester reads the language and card number, looks the card up in the community "songseeker-hitster-playlists" dataset to find the exact track, and hands the YouTube link to your external player. To keep the round fair, Tubester shows a "turn the phone upside down" hint and a short countdown before playback starts, because the external player displays the video title. The answer (year, title and artist) stays hidden behind a Reveal button. For a fully spoiler-free experience, set NewPipe to open links in the background so no title is ever shown. Features: * Scans Hitster QR cards with a fast, on-device, fully open-source scanner. * Plays songs through an external player (NewPipe recommended, or YouTube). * Spoiler-safe game flow with a flip-the-phone hint and hidden answer. * Supports many sets and expansions via the community mapping dataset. * Caches mapping data on device. Privacy: no accounts, no ads, and no analytics or tracking. Tubester needs only the Camera permission (to scan) and Internet (to fetch mappings and open links). Note: Tubester is not affiliated with Hitster or its publishers, Spotify, Google or YouTube. It relies on YouTube, a non-free network service.