Closiq Sync

Sync test clip

Open this page on both Macs, then start a session on one and join from the other.

The clip burns a running timer into the picture, so when two Macs are in step they show the same number. That makes the sync visible rather than something you have to take on faith. Three minutes long, so there is room to skip around and watch the other side follow.

Try it

1. Open this page on both Macs.
2. On the first, click the Closiq Sync toolbar button and choose Start a session.
3. Enter the six-character code on the second Mac and press Join.
4. Press play or pause on either one, or drag the scrubber. The other follows, and the two timers stay together.