Windows
Windows 10 or 11 with Premiere Pro 2021 (version 15.4) or later
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Download Sync Stacker
The latest version for Windows and Mac. Sync Stacker runs with a license key, which comes in your receipt email from Polar. No key yet? Install it anyway: until you activate one, the panel shows the plans.
Sync Stacker 3 is almost here. The installers will appear on this page the moment it's released. If you've already bought a license, your key is in your receipt email from Polar and in your customer portal.
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Mac
macOS 10.15 or later, Apple silicon or Intel, with Premiere Pro 2021 (version 15.4) or later
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Install and activate
- Windows: run the Setup file. If Windows says it protected your PC, click More info, then Run anyway. Accept the license agreement and click Install; no administrator password needed.
- Mac: double-click the .pkg file. If macOS says it can't verify it, open System Settings › Privacy & Security, scroll down and click Open Anyway. The installer asks for your Mac's password.
- Restart Premiere Pro if it was open, then choose Window › Extensions › Sync Stacker and dock the panel next to your timeline.
- Paste your license key (it starts with SS-) and click Activate.
More detail, and what to do if something goes wrong, is on the support page.
Where's my license key?
In the receipt email from Polar, our reseller. Click its Access purchase button: it opens your customer portal, already signed in, with the key. You can open the portal any time with the email address you used at checkout.