ONOFFMIX Event Watch

ONOFFMIX

Contains ads

About this app

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: [e-mail]
Product page: onoffmix.com/apps/event-watch

What’s new

ONOFFMIX Event Watch — Presentation timer for events.

✓ Countdown / Presentation / Stopwatch
✓ Auto-sync with Mac desktop (LAN + cloud)
✓ Auto alerts at 1/4, 1/2, 3/4, 1 min left, time's up
✓ Presenter face — big clock, progress bar, sound + haptics
✓ Q&A auto-balance, Galaxy Watch pairing
✓ 0.1s precision, direct min/sec input
✓ Six languages: ko / en / ja / zh / de / fr

Wherever the presenter goes, the time stays in their hand.