Buffer is one of the best-known names in social media scheduling, and its “Feeds” feature makes it look like it already does RSS auto-posting. It doesn’t — not the way that phrase usually means. Feeds is a content-discovery tool for filling your queue manually; PostRSS is a feed watcher that posts new items on its own. That distinction matters more than any pricing comparison.
Buffer lets you connect RSS sources so fresh content from them shows up inside Buffer’s interface for you to browse and pick from — a content-curation aid, not an autonomous trigger. You still choose which items to add to your queue and when they go out. For genuine “new item appears in my feed → post happens automatically, no one touches it” automation, Buffer’s own help documentation points you toward connecting Zapier as a separate integration layer on top of Buffer itself.
PostRSS watches your feed continuously and posts new items the moment they appear — no browsing a content list, no manual add-to-queue step, and no separate automation tool bolted on top. You publish once on your own site; PostRSS handles the rest natively, which is the entire product rather than one feature among many.
| Plan | Buffer | PostRSS |
|---|---|---|
| Free tier | 3 channels, 10 scheduled posts per channel (30 total) | — |
| Entry paid plan | Essentials, $6/channel/month (billed monthly) | $5/month |
| Team features | Team plan, $12/channel/month | Included by plan tier |
| Pricing model | Per connected channel — scales linearly as you add accounts | Flat plan tiers with included account limits |
Buffer’s per-channel pricing is the number worth paying attention to: connect five accounts on Essentials and you’re paying roughly five times the sticker price, since the $6 figure is per channel, not a flat monthly fee. PostRSS’s plans include a set number of accounts at each tier instead of multiplying per connection.
If you want a queue you actively curate — browsing content ideas, picking what to schedule, arranging a posting calendar by hand — Buffer’s Feeds feature is built for exactly that, and it’s genuinely good at it. If what you actually want is “I publish something once, and it shows up on my social accounts automatically, without me touching a queue,” that’s not what Buffer’s RSS feature does out of the box; you’d need to add Zapier to get there, with the extra cost and moving parts that implies. PostRSS is built to be that second thing from the start.
Not by default — Buffer’s Feeds feature surfaces content from connected RSS sources for you to manually add to your queue. Fully automatic “new item posts on its own” behavior requires connecting Zapier as an additional layer, per Buffer’s own documentation.
The free plan supports Feeds for content discovery, but its 10-posts-per-channel scheduling cap and the still-manual selection step mean it’s not a substitute for continuous, unattended auto-posting from a feed.
Buffer prices per connected channel rather than as a flat fee, so the advertised $6 or $12 figure multiplies by every account you connect — five channels on Essentials means roughly five times the listed price.
No — watching a feed and posting new items automatically is PostRSS’s core, native function, not a feature you assemble by connecting a separate automation platform.
Buffer and PostRSS solve adjacent but different problems: Buffer’s Feeds feature helps you find and manually queue content, including from RSS sources; PostRSS watches a feed and posts new items on its own, with nothing to curate. If you want hands-off RSS auto-posting specifically, that’s PostRSS’s whole job — with Buffer, it’s an extra integration you’d have to build yourself.
