Costume & Clue — Live Mystery Show Companion
A second-screen companion app that turns guess-the-celebrity TV viewing into a structured game: fans log clues as they appear on screen, build theories with friends, and win points for correct unmaskings.
German-speaking fans of celebrity mystery TV shows who love the live-rewatch ritual
- Real-time clue-diary you tap to log every on-screen hint, costume detail, and audio clue as the broadcast airs
- Private friend-pool predictions where your group earns a score per correct unmask and shares rank across seasons
- Pre-show research dossier that suggests likely contestants from current celebrity gossip, then reveals what you got right after each reveal
- Post-episode debate rooms with clip timestamps so fans can argue 'das Kostüm war eindeutig' moments with strangers
ProSieben's switch from live to recorded broadcasts strips out the social-media sleuthing ritual fans built around the show, and the new faster 4-mask-per-episode format means 13 demaskings a season — fans will crave a structured way to track clues, defend theories, and compete now that the live Tweeting window is gone.
Google Trends confirms 1000+ searches for 'the masked singer' in DE; Joyn explicitly markets live voting, guessing with 500€ prizes, and Indizien (clue) tracking to Masked Singer fans, evidencing strong live-engagement demand."The Masked Singer" in der Joyn App: So kannst du aktiv mitbestimmen! ↗The Masked Singer 2024: ProSieben ändert Show-Konzept ↗
Whitespace is severely compressed: Joyn (ProSieben's own app) already provides live voting, celebrity guessing with cash prizes, and clue tracking integrated directly into the broadcast, and 'Mask Mania' is an official mobile game — a third-party companion competes against a free, official, deep-integrated incumbent."The Masked Singer" in der Joyn App: So kannst du aktiv mitbestimmen! ↗The Masked Singer Season 13 Announces Surprising New Game Mask Mania As... ↗
Hard to monetize when Joyn pays users 500€ per show to guess for free; a second-screen companion app would need to compete with an official, prize-backed, free funnel, leaving only weak ad/subscription options against a seasonal audience."The Masked Singer" in der Joyn App: So kannst du aktiv mitbestimmen! ↗
Show is still airing (Season 12 ran Nov–Dec 2025) and keeps getting renewed, but the entire app is hostage to a single franchise's lifecycle and ProSieben's format decisions; the unverified 'live→recorded' switch also suggests the network is actively reshaping engagement around the show.The Masked Singer/Staffel 11 - Wikipedia ↗Season 12 (GM) | The Masked Singer Wiki | Fandom ↗
Technically trivial — basic mobile/web app with realtime clue logging and social features; main engineering challenge is rights/UX around live TV sync, not core tech.The Masked Singer Guessing Game - Coda ↗