PostSyncer vs Postiz
Managed depth vs open-source freedom

Postiz is an open-source, self-hostable social media scheduler (AGPL-3.0) that supports 30+ networks, including niche and decentralized ones like Mastodon, Bluesky, Nostr, Reddit, Discord, and Telegram, and can be run for free on your own server. PostSyncer is a fully managed platform that supports 10 mainstream networks with deep native features and adds a unified comment inbox with 24/7 AI auto-replies, CRM contact management, an AI image and video generator (Veo 3, Sora 2, Nano Banana Pro), and a 1M+ viral video library. Both include a REST API and an MCP server for AI assistants. Choose Postiz if you want open-source control, self-hosting, and the widest platform list; choose PostSyncer if you want a managed tool with deeper engagement, AI video creation, and no servers to maintain.

It depends on how you count. Postiz is free if you self-host the open-source version, but you cover your own server, setup, and maintenance. On Postiz's hosted plans, Standard is $29/month for 5 channels with a 400 posts/month cap and no included team members, while unlimited posts and unlimited team members start on the Team plan at $39/month for 10 channels. PostSyncer's Starter plan is $29/month for 10 accounts with unlimited posts and unlimited team members included, so for a small team on managed hosting PostSyncer gives more accounts and no post cap at the same entry price.

Yes. Postiz is genuinely open source under the AGPL-3.0 license, its code is on GitHub, and you can deploy it on your own cloud for free. That is a real advantage if you want data ownership, privacy, and full control, and if you have the technical skills to run and maintain it (some users report that bare-metal setups can be finicky and recommend the official Docker image). PostSyncer does not offer a free self-hosted option; it is a managed SaaS, so there are no servers, updates, or platform API maintenance for you to handle.

Postiz supports more networks by count, 30+, including decentralized and developer-focused ones such as Mastodon, Bluesky, Nostr, Lemmy, Warpcast, Reddit, Discord, Slack, WordPress, Dev.to, Medium, and Dribbble. PostSyncer focuses on 10 mainstream networks (Instagram, Facebook, LinkedIn, TikTok, Pinterest, YouTube, X/Twitter, Threads, Bluesky, and Telegram) with deep native support for advanced formats like Reels, Stories, carousels, and Shorts. If you need niche or decentralized platforms, Postiz has the wider reach; if you focus on the major networks, PostSyncer offers more depth per platform.

Postiz includes an AI copilot with AI image and short-video generation, but with monthly allowances that vary by plan (for example, 3 AI videos on Standard, 10 on Team). PostSyncer includes an AI image and video generator built on premium models like Veo 3, Sora 2, and Nano Banana Pro, plus a 1M+ viral video library for short-form inspiration and an AI Content Agent that turns URLs, PDFs, or text into platform-ready posts. Postiz covers the basics of AI creation; PostSyncer goes deeper on video and content ideation.

Postiz offers unlimited team members from its Team plan ($39/month) with two roles (Admin and Member) and customer groups for organizing clients. PostSyncer includes unlimited team members on every paid plan, plus approval workflows, role-based permissions, multiple workspaces on Pro Plus, a unified comment inbox with AI auto-replies, and CRM contact management. For agencies that want managed collaboration and engagement in one place, PostSyncer is more complete; for agencies that prefer open-source control and self-hosting, Postiz is a strong fit.