Watch anywhere. React together.
The comment section for streaming.
Every comment lands at the exact moment it belongs, so you can watch together without starting together.
We don’t stream content. Just the conversation around it.
One timeline, wherever you watch
SINK keeps the conversation attached to the moment, not the platform.
Watch Apart. React Together.
Public and private reactions wait on the title timeline, so friends do not have to press play at the same time.
See the Conversation Take Shape
Crowdprint maps where real reactions gather across a title, from the compact timeline while you watch to the complete image you can share.
Football, Synced to Your Broadcast
Selected football pilots align reactions to the game clock, with viewer calibration for broadcast delay.
SpoilerShield keeps future comments behind your current moment.
New: connect SINK to Claude or ChatGPT and ask about your watchlist from anywhere.
How SINK Works
The conversation follows the content timeline, not a scheduled call.
Choose a title or game
Open a movie or show room, or join one of the selected football pilots.
Match your moment
Supported browser players provide an exact position. The private phone beta uses on-device fingerprint matching for covered titles, with manual adjustment when needed.
React on the timeline
Comments and reactions appear when each viewer reaches the same moment. Later comments remain behind the playhead.
Football pilots use the game clock plus viewer calibration so reactions wait for your broadcast.
Invite-only filmmaker pilot
Hosting a screening?
Create a private title, synchronize the exact cut, share a QR invitation, operate the room, and collect audience feedback. SINK processes authorized source media temporarily; it does not stream your film.
We are putting SINK on smart glasses.
The room clock, the scene you are in, and the reactions, in your peripheral vision instead of on a phone. Working prototype, no ship date.
Frequently Asked Questions
What the private beta and invite-only screening pilot do, and what they do not claim.
Get in Touch
Have questions about SINK? We'd love to hear from you.
Ready tostop watching alone?
Pick a title, join its shared timeline, or invite friends to a private room.