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Buffer vs Zernio

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Entry price
Buffer from $5/mo, Zernio from $6/seat/mo — different billing units, so no direct winner
Free plan
Both have one
Public API
Both have one
Higher Trust score
Buffer — 82 vs 70 for Zernio
Best fit
Buffer: Solo creators and small businesses posting to a handful of networks · Zernio: Developers building a product that needs to publish or read social data programmatically

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

BufferSchedules, publishes and analyzes social posts across 12 networks, with an AI assistant for drafting and repurposing included on every plan.ZernioA REST API and MCP server for posting, scheduling and reading analytics across 16 social platforms.

Side by side

FactBufferZernio
CategorySocial Media ManagementIntegration & iPaaS
Pricing modelFreemiumFreemium
Starts at$5/mo$6/seat/mo
Public APIYesYes
Trust score82 / 10070 / 100
PlatformsWeb, iOS, Android, Chrome extension, APIAPI
CompanyBuffer, Inc.Zernio
Launched2010—
Last verifiedOct 29, 2026Oct 15, 2026

What our research says

Buffer

Buffer fits solo creators, small businesses and lean agencies who want simple scheduling and analytics with AI help on drafts and no add-on fee. Brands that need social listening, paid-ads management or deep enterprise reporting will outgrow it.

Pros

  • AI Assistant included on every plan, including free
  • Per-channel pricing lets you pay only for the networks you use
  • Covers newer networks such as Bluesky, Threads, Mastodon and Substack
  • Public GraphQL API and CLI with documented rate limits

Cons

  • Costs scale with channel count, so many accounts get expensive on Team
  • Free plan caps the queue at 10 posts per channel and keeps 30 days of insights
  • No social listening or ad management

Zernio

Zernio is infrastructure rather than an end-user tool: it gives developers and AI agents one API and MCP server instead of integrating 16 separate social platform APIs individually. That is valuable if you are building a product on top of social publishing, but it is the wrong pick for someone who just wants a scheduling dashboard to click around in.

Pros

  • Single API covers 16 platforms instead of integrating each network separately
  • Ships a hosted MCP server so AI agents can call posting and analytics functions as tools
  • First two connected accounts are free, useful for testing before committing

Cons

  • Requires development work to integrate; there is no ready-made dashboard for non-developers
  • Per-account pricing at scale needs modeling before it's clear what a large account base will cost
  • No public information on the company or team behind it

Which one fits

Choose Buffer if you need

  • Solo creators and small businesses posting to a handful of networks
  • Agencies that add and drop client channels and want to pay per channel
  • Teams that want AI drafting without a separate subscription

Choose Zernio if you need

  • Developers building a product that needs to publish or read social data programmatically
  • Teams wiring AI agents to post or respond on social platforms via MCP

Buffer vs Zernio: the questions people ask

Is Buffer cheaper than Zernio?

They charge in different units, so there is no like-for-like answer: Buffer starts at $5/mo, Zernio at $6/seat/mo. Entry price is the lowest paid plan as we last verified it.

Does Buffer or Zernio have a free tier?

Both: Buffer has a free tier, and Zernio has a free tier.

Which has a public API, Buffer or Zernio?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.

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