Ayrshare vs Zernio: the facts side by side, and a third option

Both are APIs that publish to several social networks. Here is what each one bills, what it costs for an agency, its free plan, MCP server and refund — each cell read on the vendor's own page, with the link and the date — next to PostWire, which also writes each network's post.

Short answer. For 10 clients on 5 networks: Ayrshare $299 — Launch, Zernio $168 — per account, PostWire $29 (Pro). PostWire is priced per business, has a free plan with the API and the MCP server, and writes a native post for each network from one idea.
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Ayrshare read on Oct 9, 2026, Zernio on Oct 9, 2026. If they changed since, their pages win.

Ayrshare, Zernio and PostWire

AyrshareZernioPostWire
What you pay forSocial profile — one customer, brand or location with any number of networksayrshare.com, Oct 9, 2026Connected social account — one profile on one platformzernio.com, Oct 9, 2026One business (brand) — every network of that business included
Cheapest paid plan$149 a month (Premium, 1 profile)ayrshare.com, Oct 9, 2026$6 per account a month, after the first 2 freezernio.com, Oct 9, 2026$9 a month (Starter, 3 businesses)
Free planNo free plan for new sign-ups; a 28-day trial on Launchayrshare.com, Oct 9, 2026Yes — the first 2 accounts, no cardzernio.com, Oct 9, 2026Yes — 1 business, 20 posts a month, the REST API and the MCP server, no card
10 clients × 5 networks, a month$299 — Launchayrshare.com, Oct 9, 2026$168 — per accountzernio.com, Oct 9, 2026$29 — Pro
Writes a different post per network from one ideaNo — the same content to every network in platformsayrshare.com, Oct 9, 2026No — you send each platform's text (customContent)zernio.com, Oct 9, 2026Yes — one request returns a native post for every network
MCP server for AI agentsHosted; a static Bearer API key only, no OAuth sign-inayrshare.com, Oct 9, 2026Hosted, OAuth or API keyzernio.com, Oct 9, 2026Hosted, API key or OAuth 2.1 sign-in
Refund or guaranteeFull refund within 48 hours of a charge, then proratedayrshare.com, Oct 9, 2026No refunds (usage-based billing)zernio.com, Oct 9, 202614 days on every paid plan
Of the 10 networks PostWire publishes to, listed8 of 10 (not listed: Mastodon, Discord)ayrshare.com, Oct 9, 20269 of 10 (not listed: Mastodon)zernio.com, Oct 9, 202610 of 10

16 of 16 Ayrshare and Zernio cells carry their source and read date. "Not listed" means we could not find it on the vendor's own pages. PostWire's column comes from the code that bills you (src/plans.js).

Where PostWire is ahead

  • The lowest bill of the three for an agency. 10 clients on 5 networks: $29 a month on PostWire Pro, every network included. Ayrshare: $299; Zernio: $168.
  • It writes the posts. One request turns one idea into a native post per network — a hook for TikTok, a title and tags for YouTube, a longer post for LinkedIn — and the next call publishes them. Ayrshare publishes the text you send; its AI features come with the Max Pack, a +$300 a month add-on on Business.
  • Per business, not per account. 10 businesses on 5 networks are $29 a month, and a sixth network costs nothing. Zernio bills each connected account — first 2 free, then $6, $3 and $1 each — so the same 50 accounts are $168.
  • A free plan, with the API and MCP in it. 1 business, no card, no time limit. Ayrshare has no free plan; its 28-day trial is on Launch only.
  • It writes the posts. One request returns a native version for each network from one idea. On Zernio you send the text for each post.
  • Add it to Claude by signing in. PostWire's hosted MCP server takes OAuth 2.1 or an API key. Ayrshare's MCP server authenticates with a static Bearer key, so it is not a connector you add by signing in.
  • A 14-day refund on every paid plan. Zernio's usage-based billing has no refunds.

Switching from either one

Move from Ayrshare: field mapping and converterMove from Zernio: field mapping and converterPostWire vs AyrsharePostWire vs ZernioCost for 3 to 50 clients

Questions people ask

What is the difference between Ayrshare and Zernio?

Ayrshare bills social profile — one customer, brand or location with any number of networks; Zernio bills connected social account — one profile on one platform. Cheapest paid plan: Ayrshare $149 a month (Premium, 1 profile), Zernio $6 per account a month, after the first 2 free. Each fact on this page links the vendor page it was read from and the date.

How much do Ayrshare and Zernio cost for 10 clients?

For 10 client businesses on 5 networks each: Ayrshare $299 — Launch, Zernio $168 — per account, read on their pricing pages. PostWire: $29 a month (Pro), every network included.

Is there an alternative to Ayrshare and Zernio?

PostWire is a posting API priced per business that also writes each network's post from one idea, in the same request that publishes — over REST, n8n, Make or its hosted MCP server. It has a free plan with the API and MCP (1 business, no card) and a 14-day refund on paid plans.

How do I move from Ayrshare or Zernio to PostWire?

Each has a switching kit with the field-by-field mapping and a converter that turns a request into PostWire's: https://postwire.io/migrate/from-ayrshare/ and https://postwire.io/migrate/from-zernio/.

Type one idea and see the post each network gets.

The demo on the home page writes live, with no account, and never publishes. The free plan covers one business — every network connects free, 2 networks per post — with no card and no time limit. Paid plans have a 14-day refund.

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