ONOFFMIX Event Watch

ONOFFMIX Event Watch is a multi-device presentation timer that keeps presenters and operators on the same clock. The presenter sees just a big clock, the backstage operator controls the talk flow and alerts. ■ Why it matters The time follows the speaker — wrist, phone, tablet, podium screen — no matter which device runs the talk. The presenter glances once, the operator drives the schedule from backstage. ■ Key features • Drift-free wall-clock timer — under 1 second drift over 30-minute talks • Three modes — Stopwatch, Countdown, Presentation (Talk + Q&A separated) • Auto sync — mDNS discovers the Mac sync host on the same Wi-Fi; falls back to Cloudflare relay across networks • 12 milestone alert sounds + haptic vibration • Auto Q&A balance — Q&A grows automatically when the talk ends early • Done state with big banner + red negative clock when overtime • Wear OS sync — same time on your wrist, vibrates at 1-min warning / overtime entry / every configured milestone • Tablet Operator and Presenter mode toggle • 6 locales: Korean, English, Japanese, Simplified Chinese, German, French ■ How it works 1) The Mac desktop app (separate download: onoffmix.com/apps/event-watch) is the source of truth. 2) Android Phone, Tablet, and Wear OS on the same Wi-Fi auto-discover and sync via mDNS. 3) Across networks, Cloudflare relay takes over automatically — venues with external Wi-Fi stay in sync. 4) Phone or Tablet can run standalone without a Mac. ■ Use cases • Conferences and seminars • Speaker series and lecture events • Panel discussions • Internal presentations / IR meetings • Podcast recordings / live broadcasts • Workshops and session timing ■ Device topology - Mac: source of truth + WebSocket host + operator console - Tablet: operator aux or stage clock - Phone: Mac mirror or standalone mode - Wear OS: wrist mirror with haptic alerts ■ Privacy - No user data collected. - Cloud Relay only forwards real-time sync packets; nothing is stored. - All talk data stays local on your devices. ■ Requirements - Android 8.0 (API 26) or higher - Wi-Fi or cellular data for sync - Wear OS 3.0+ (paired phone required) ■ iOS counterpart iPhone, iPad, and Apple Watch users get the same app on the App Store. Both OS families share the same Mac sync host. Support: [email protected] Product page: onoffmix.com/apps/event-watch