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Social Magnum vs Postiz: Managed Flat or Self-Hosted (2026)

Postiz is open source with unlimited seats from $39; Social Magnum is a managed $24 flat plan with the inbox and approvals inside. Two philosophies priced side by side from both vendors' pages.

Social Magnum9 min read
Social Magnum's dark tile and Postiz's white tile facing each other across a red VS on a dark canvas

This is a comparison between two philosophies. Postiz says: the scheduler should be open source — run it yourself for free, or pay us to host it, with an API, webhooks and agent tooling on every tier. Social Magnum says: the scheduler should be a managed flat plan with the whole operation inside — inbox, approvals, AI, people. Both are modern, both are agent-friendly, and they fail different users in different ways, which is what this page maps.

Pricing side by side

PostizSocial Magnum
Self-hostedFree — open source, your server, your opsNot offered
Hosted entryStandard: $29 /mo · 5 channels · no team members · 3 AI videos /moStarter: $24 /mo ($19 yearly) · 10 accounts · 2 people
Hosted midTeam: $39 · 10 channels · unlimited members · 100 AI images /moBusiness: $59 ($47) · 30 accounts · 6 people
Hosted upperPro: $49 · 30 channels; Ultimate: $99 · 100 channelsAgency: $119 ($95) · 70 accounts · 10 people
Free optionSelf-host only; hosted has a 7-day trialFree plan: 2 accounts, 15 posts /mo
AI meteringBy count: images and videos per month by tierUnmetered captions and images, every paid plan

The like-for-like line: 10 channels hosted is Postiz’s $39 Team plan with unlimited members and metered AI; 10 accounts here is $24 with 2 people and unmetered AI. Which wins depends entirely on how many people you seat.

Feature by feature

Social MagnumPostiz
Publishes toFacebook, Instagram, Threads, TikTok, YouTube, Pinterest, Bluesky, MastodonA broad channel list including X and LinkedIn; see Postiz’s site for its current set
Unified inbox with auto-repliesYesPost comments listed; no unified inbox on its pricing page
Post approvalsAll paid plansTeam workflows on member tiers
AI imagesIncluded, unmeteredMetered: 100 to 500 /mo by tier
AI video generationNoYes — 3 to 60 /mo by tier
CSV bulk schedulingYesPer its feature list
RSS auto-postingYesPer its feature list
API and webhooksMCP server, 26 documented tools, OAuthREST API + webhooks + agent tooling, every plan
Self-hostingNoYes — open source
Free plan (hosted)YesNo

Where Postiz wins

  • Ownership. The self-hosted build is free, auditable and yours — the only $0-forever path in this category, and the reason Postiz exists.
  • Seats at scale. Unlimited team members from $39 a month. Our $59 plan seats 6; a fifteen-person team is Postiz’s argument in one line.
  • AI video. Postiz generates videos on every hosted tier; Social Magnum generates captions and images, not video.
  • Developer surface on every plan. API, webhooks and agent tooling are not gated to an upper tier.

Where Social Magnum wins

  • The operation is included. A unified inbox with keyword auto-replies, post approvals and analytics ship at $24 — Postiz’s pricing page centres publishing and automation, not engagement.
  • Unmetered AI images. No monthly counter to plan around.
  • A hosted free plan. 2 accounts and 15 posts a month with no server to run and no 7-day clock.
  • Maturity of the agent surface. Both products are agent-friendly; ours is an MCP server with 26 tools publicly documented, OAuth sign-in, approval gates and pacing rules — judge both by their docs, not their checkboxes.

Which one to pick

The short version

  1. 1

    You have a server and want ownership: Postiz, self-hosted — nothing here beats free and auditable.

  2. 2

    Large team, hosted, on a budget: Postiz's $39 unlimited-member tier.

  3. 3

    Lean team that wants inbox, approvals and AI managed in one flat bill: Social Magnum at $24.

  4. 4

    AI video in the same tool: Postiz; unmetered AI images: Social Magnum.

  5. 5

    Cheapest honest test: our free plan against their 7-day trial (or a weekend self-host), same week of content in both.

More in this series: the best Postiz alternatives, the best social media posting APIs and Social Magnum vs Publer.

Frequently asked

Is Postiz free or paid?

Both: the open-source build is free to self-host on your own infrastructure, and the hosted product is paid — $29 a month for 5 channels, $39 for 10 with unlimited team members, $49 for 30, $99 for 100, with a 7-day trial. Verified on its pricing page 23 August 2026. Social Magnum is hosted-only with a permanent free plan.

Which is cheaper, Social Magnum or Postiz?

At 10 accounts hosted: Social Magnum $24 a month with 2 people and unmetered AI, against Postiz's $39 Team plan with unlimited members and metered AI. Under roughly 6 seats ours is cheaper; for big teams Postiz's unlimited membership flips it. Self-hosted Postiz is $0 plus your ops time.

Which is better for AI agents, Social Magnum or Postiz?

Both are agent-friendly — Postiz ships an API, webhooks and agent tooling on every plan; Social Magnum ships an MCP server with 26 publicly documented tools, OAuth sign-in, approval gates and pacing rules. Pick by reading each vendor's agent documentation against your actual workflow rather than by feature checkbox.

Can I self-host Social Magnum?

No — Social Magnum is a managed product only. If self-hosting is a requirement, Postiz is the answer in this comparison; it is open source and free on your own server, which is its genuine, unmatched advantage.

Does Postiz have an inbox like Social Magnum?

Its pricing page lists post-comment features but no unified inbox or auto-reply system; the product centres publishing, automation and its developer surface. Social Magnum includes a unified inbox with keyword auto-replies for comments and Instagram DMs on paid plans — if engagement management is central, that is the practical difference.

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