A structured co-watching layer for sports, reality TV, and live-streamed events aimed at fan-run communities, bar chains, and betting partners who currently hack Discord, Zoom, and Telegram to host watch parties. Fans want synchronized streams, lightweight games, and social betting/prop challenges without violating broadcast rights or enduring chaotic voice channels. WatchRally integrates via second-screen sync (audio watermark/clock sync) so users keep watching on legal broadcasters while overlaying real-time trivia, prediction markets with tokens/points, and micro-leagues in-app. Communities get templated watch-party formats, moderation tools, and sponsorship slots; sports books and brands embed sponsored challenges. Revenue comes from B2B SaaS for communities/bars, rev-share with sportsbooks, and optional white-label SDK for leagues—moat via network effects among fan communities and engagement data.