Yes. You can schedule Substack Notes in Buffer by connecting your Substack account, writing your Note, and picking a time for it to go out. Substack added native Note scheduling in its own composer too, so the reason to use Buffer is what happens around the Note: one calendar covering every channel you post to, the same Note sent to LinkedIn, X, Threads and Bluesky, and analytics showing which Notes brought in subscribers. [CONFIRM: does Buffer publish Notes automatically, or send a notification to finish in Substack?]

Substack handles scheduling for full posts inside its own editor, where you can pick a publish date for a draft. Buffer works on the layer around that: add your Substack as a feed and Buffer will pull in published posts so you can queue them to your social channels, or share them again as Notes weeks later. Notes are the part Buffer schedules directly.

Yes. Connect your Substack account to Buffer and your Notes become another channel in your queue, sitting alongside LinkedIn, Instagram, X, TikTok and the rest. You can also add your Substack as a feed, which pulls your published posts into Buffer so you can promote them without copying links by hand. [CONFIRM: connection method, OAuth or feed URL, and roughly how long setup takes.]

Yes. Write a Note in Buffer and you can send the same text to LinkedIn, X, Threads, Bluesky, and any other channel you've connected, editing each version if you want it to read differently. Notes tend to stay locked inside Substack otherwise, so this is the part most writers set up first.

Yes. Buffer's free plan lets you connect your Substack account and schedule Notes without paying or entering a card. Paid plans add more channels, analytics history, and collaboration for teams. [CONFIRM: exact free plan limits, channel count and scheduled-post cap, so the answer can be specific rather than vague.]

Buffer shows how many free and paid subscribers each Note brought in, plus impressions, follows, and engagement. Because your other channels sit in the same dashboard, you can also compare a Note against the LinkedIn or Threads version of the same idea and see which one earned more.

Yes. Buffer's API and MCP connector let you schedule, repost, and report on Notes from outside the app, so you can wire Notes into Claude, ChatGPT, Zapier, or a script of your own. A common setup is asking an assistant to draft Notes from a published issue and drop them into your Buffer queue for review before anything goes out.

No. Buffer schedules Notes from the web app and the mobile apps, so there's nothing to install. Several third-party Chrome extensions do the same job for Substack alone, but they only cover Notes, and they stop working whenever the extension breaks or Substack changes its page.

Yes. Each publication connects as its own channel in Buffer, so writers running two or three Substacks can schedule for all of them from one account and keep the analytics separate.

Sign up for Buffer, connect your Substack account, and write your first Note. You can start on the free plan without a card, add your other channels whenever you want the Note going out to more than one place, and pick up a 14-day trial of the paid plans if you need analytics or team access.