Both are open and self-hostable. They’re still built for different work.
Postiz is a place you run: a calendar, an AI writer, analytics, team approvals — all AGPL-3.0, all yours to self-host on a single Docker host. That’s a generous, genuinely good product, and its public REST API and postiz-agent CLI are real — you can absolutely drive it from code or an agent.
Social Fanout starts from the call. Social Fanout stays API-first, while including a lightweight agenda as an optional reference client. Your software or agent can still do the posting directly. You connect each account once, then a single POST /v1/publish fans out to up to 20 targets and returns a receipt per target.1 The product is the API — and on the hosted path we carry the OAuth and platform app-review burden so there’s nothing for you to operate.
So the table below isn’t a list of things Postiz “can’t do.” It’s the most evenly matched comparison on this site. The real differences are narrow and specific: a one-call fan-out with structured receipts, a far lighter footprint, managed provider approvals, and pricing and licensing that stay out of the way when you embed.
Where each one actually wins
Pricing checked August 1, 2026; feature notes last checked June 15, 2026.1
| Capability | Fanout | P Postiz |
|---|---|---|
| Publish from an API | REST · POST /v1/publish | REST API + Node SDK |
| One call fans out to many targets, with receipts | per-integration · scheduling model | |
| Fully open-source codebase | hosted API + self-host layer | AGPL-3.0 |
| Self-hostable | YES · lightweight | YES · full stack |
| Footprint to self-host | an API layer | Postgres · Redis · Temporal · app |
| Agent / MCP server | YES · local | YES · agent CLI + MCP |
| Managed OAuth & platform app-review | YES · hosted | self-host: yours to run |
| Scheduling UI, AI writer, analytics & teams | lightweight agenda; no AI or teams | |
| Networks | 12 exposed types; live status varies | 15+ (markets 30+) |
| Hosted white-label / embed | YES · written agreement | AGPL-3.0 copyleft |
| Pricing | Free · $10 · Builder $19 ($5.99 with RIDEORDIE) · $49 | Self-host free · cloud $29 / $39 / $49 / $99 monthly |
Read it straight. Postiz’s calendar, AI writer, analytics, team workflow, wider channel list and fully-open codebase are real advantages our lighter product surface doesn’t try to match. Our edge is narrower and specific — the one-call fan-out with per-target receipts, a near-zero-ops footprint, managed provider approvals, and pricing and licensing that don’t get in the way when you embed.
A platform to run, or a call to make
P POSTIZ
- Stand up the stack (Postgres, Redis, Temporal) — or sign in to cloud
- Connect each channel in the dashboard
- Compose on the calendar, lean on the AI writer
- Schedule — or drive it via the REST API /
postiz-agent
SOCIAL FANOUT
If a person is composing — and you want a calendar, an AI assistant and a place to sit inside — Postiz is excellent, hosted or self-run. If software composed it, you want the one request: fanned out, with a receipt for each target, and no platform to keep alive.
We’re not going to pretend
You want to own a complete, self-hostable platform for free — calendar, AI writer, analytics, team approvals and the widest channel list — and you’re happy to run Postgres, Redis and Temporal (or pay cloud per channel). Social Fanout includes a lightweight agenda and Post Flight Deck, but not a full campaign calendar, AI writer, analytics suite, or team workflow; the call remains the core product. For a team that wants to host its own scheduling app, Postiz is the stronger pick.
Plenty of setups run both — Postiz for human, calendar-driven scheduling; Social Fanout the moment publishing has to happen inside a product or an agent’s loop, with a receipt per target and no infrastructure to babysit. One thing to weigh on the open-source side: if you plan to embed or modify Postiz inside a closed product you distribute or expose over a network, factor in AGPL-3.0’s reciprocal-source terms — Social Fanout’s self-hosted source is MIT-licensed, while hosted white-label requires a written reseller agreement and carries no copyleft.
Notes & sources
- Competitor pricing was checked on the official vendor site on August 1, 2026; feature notes were last checked June 15, 2026. Postiz is open-source under AGPL-3.0 and ships real API, agent and self-host paths; vendors change pricing and features often — check each vendor’s own site before deciding. Sources: postiz.com/pricing and docs.postiz.com.