Software · head to head
Postmark vs Buffer
Postmark
Software
No hidden fees, no guesswork. Just the features you need, at a price that makes sense
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Postmark free tier caps at 100 emails per month with no overages allowed; Buffer the free plan allows 3 connected channels and 10 scheduled posts per channel
Where they differ
Only the attributes on which Postmark and Buffer actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Postmark
Nothing recorded that Buffer does not also cover.
Only in Buffer
- Post scheduling
- Content calendar
- Analytics dashboard
- Link shortening
- Hashtag manager
- First comment
- Instagram Stories
- Shop Grid
What people use each for
The jobs each tool is most often brought in to do.
Postmark
No use cases recorded yet. See the Postmark review.
Buffer
- Social media schedulingnot Postmark
- Content planningnot Postmark
- Performance analyticsnot Postmark
- Team collaborationnot Postmark
- Client managementnot Postmark
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Postmark
- Free tier caps at 100 emails per month with no overages allowed
- Basic plan ($15/mo) includes 10,000 emails then charges $1.80 per 1,000 extra; Pro and Platform tiers have their own lower per-1,000 overage rates ($1.30 and $1.20), so cost scales per email beyond the included volume
- Custom high-volume pricing above the published tiers requires contacting sales
Buffer
- The free plan allows 3 connected channels and 10 scheduled posts per channel
- Essentials at $5 a month covers a single user; team members need the Team plan at $10 a month
- Approval workflows and custom permissions are Team tier only
- API access is rationed by plan, from 3,000 monthly requests on free to 15,000 on Team
- Content ideas are capped at 100 on the free plan
Pricing, plan by plan
Postmark
FreeNo published plan breakdown. See the Postmark review.
Buffer
Free- FreeFree
- 3 connected accounts
- 10 scheduled posts per channel per month
- 100 content ideas
- Essentials$5/month
- Unlimited scheduled posts
- Per-channel pricing
- Advanced analytics
- Team$10/month
- Unlimited team members
- Unlimited scheduled posts
- Content approval workflows
Which should you pick?
Choose Buffer if
- You need post scheduling.
- You want to start without paying.
- You work on Web, iOS, Android.
- You also want content calendar.
Questions people ask
- Is Postmark or Buffer better?
- Neither clearly leads. Postmark starts at Free and Buffer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Postmark or Buffer?
- Postmark starts at Free and Buffer at Free.
- Does Postmark or Buffer run on more platforms?
- Postmark runs on Web. Buffer runs on Web, iOS, Android.
- Can I use Postmark for free?
- Both have a free tier, so you can try either at no cost before committing.
- What can Postmark do that Buffer cannot?
- Buffer covers Post scheduling, Content calendar, Analytics dashboard, Link shortening.
Answered from the vendors’ own pages
Buffer: Does Buffer's free plan include all social media platforms?
The free plan supports 3 connected accounts across any of Buffer's 11 supported platforms (Instagram, Facebook, TikTok, LinkedIn, X, YouTube, Threads, Pinterest, Google Business Profile, Bluesky, Mastodon) with up to 10 scheduled posts per channel per month.
SourceBuffer: Can I schedule Instagram Stories with Buffer?
No. Instagram Stories cannot be auto-published. Buffer sends a mobile notification to manually post stories, as Instagram does not provide an API for automated Story scheduling.
SourceBuffer: What is Buffer's per-channel pricing model?
Buffer charges per social media account (channel) rather than per user. Channels 1-10 cost standard rates ($5 Essentials or $10 Team), with additional channels beyond 10 discounted per channel.
SourceBuffer: Does Buffer have a mobile app and what platforms does it support?
Yes, Buffer offers iOS and Android apps for mobile management. The iOS app supports Mastodon and YouTube comment features, while Android support for these features is in development. Android community access works on the six most recent major Android versions.
SourceBuffer: What discount does Buffer offer for annual billing?
Buffer offers a 20% discount for annual billing across all paid plans, plus an additional 50% discount on paid plans for nonprofit organizations.
SourceBuffer: Can Buffer integrate with content creation and storage tools?
Yes. Buffer integrates with 24 tools including Canva, Google Drive, Dropbox, Unsplash for media, Zapier and Make for automation, WordPress for publishing, and Claude, ChatGPT, and Perplexity for AI-assisted content creation.
Source