Synchrium
Shared countdown timer that mutes chat until zero, then turns on cameras for everyone at once.
Synchrium runs one synchronized timer across everyone who joins a link: while it counts down, chat and camera stay off and each person works alone, then mics and cameras switch on together at zero for a short reunion. No account is needed to start, and the video reunion runs over E2E WebRTC instead of through Synchrium's own servers. The free tier allows 3 timers a day with 7-day history; paid plans start at $5/month for unlimited timers and 6-person video, scaling to $4/seat team and $12/seat enterprise tiers with SSO and audit logs.
What holds up
- +No account needed — share a link and the synced timer starts right away
- +Video reunion runs over E2E WebRTC, not routed through Synchrium's own servers
- +Free tier gives 3 timers a day with 7-day history — enough to test with someone first
- +Pricing scales cleanly: $5/month solo, $4/seat team, $12/seat enterprise with SSO and SLAs
Mind the limits
- −Free plan caps at 3 timers a day — frequent users need the $5/month Pro tier
- −Group video tops out at 6 people on Pro — teams of more need the $4/seat Team plan
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