Postiz vs Buffer

The short answer

Postiz is an open-source social media scheduler known for its AI agent, MCP server and CLI that let tools like Claude and ChatGPT schedule posts. Buffer is a simple social media scheduler known for its free plan and per-channel pricing.

At 10 channels Postiz costs $31 a month against $50 for Buffer, so Postiz is $19 a month cheaper (38% less). Postiz lists more networks (30 against 12). On the 15 features we track, Postiz alone has RSS auto post, and Buffer alone has client approval, social inbox, client reports, link in bio page, browser extension and canva integration.

Choose Postiz if you want the lower price for 10 channels ($31 against $50 a month), you post to Reddit, Telegram, Discord, Slack and 15 more and you need RSS auto post. Choose Buffer if you post to Substack, you need client approval (Content approval workflows are on the Team plan only), you need social inbox, you need client reports (Reports on Essentials and Team; branded reports on Team only), you need link in bio page (Start Page, on every plan including Free), you need browser extension (Every plan), you need canva integration (Every plan, plus Google Drive and Dropbox), you want a free plan and you want a longer trial (14 days).

Pricing

Postiz charges a flat price per plan, while Buffer charges per connected channel. Compare them on the exact number of channels and people you have, not on the entry price.

Postiz: Flat price per plan, set by the number of channels. Unlimited posts on every plan. Buffer: Per connected channel, with volume discounts above 10 channels. Yearly billing saves about 2 months.

Cost at 5 and 10 channels

The cheapest listed plan that covers the number of channels. Where a price depends on seats, brands or workspaces, the table says so.

At 5 channels Postiz costs $23 a month against $25 for Buffer, so Postiz is $2 a month cheaper (8% less). At 10 channels Postiz costs $31 a month against $50 for Buffer, so Postiz is $19 a month cheaper (38% less).

Cost for a solo user, a small team and an agency

Seats, brands and workspaces change the bill as much as channels do. This table picks the cheapest listed plan of each tool for 3 setups.

For 5 channels and 1 person, Postiz is the lowest at $23 a month and Buffer the highest at $25. For 10 channels and 3 people, Postiz is the lowest at $31 a month and Buffer the highest at $100. For 25 channels and 5 people, Postiz is the lowest at $39 a month and Buffer the highest at $180.

Trials and free plans

Postiz: 7-day free trial on every plan. Card terms are not stated on the pricing page. Free plan: No free cloud plan. The open-source edition can be self-hosted for free.

Buffer: 14-day free trial of paid plans. Without payment details the account drops to the Free plan. Free plan: Yes: 3 channels, 1 user, 10 scheduled posts per channel, 100 ideas, 30 days of analytics.

Features

Plan limits on key features

• Client approval. Postiz: not offered Buffer: Content approval workflows are on the Team plan only.
• Public API. Postiz: included. Buffer: Every plan includes API access with monthly request limits (3,000 to 15,000).
• Client reports. Postiz: not confirmed. Buffer: Reports on Essentials and Team; branded reports on Team only.
• Link in bio page. Postiz: not confirmed. Buffer: Start Page, on every plan including Free.
• Browser extension. Postiz: not confirmed. Buffer: Every plan.
• Canva integration. Postiz: not confirmed. Buffer: Every plan, plus Google Drive and Dropbox.

Both list analytics, AI writing help, public API, MCP server and mobile app.

Neither confirms bulk upload (CSV), white label and client connect link.

Area by area

How Postiz and Buffer handle each part of the job, in the words of their own pages.

Publishing and scheduling

Postiz: Postiz posts to 30 networks, including community and developer sites such as Reddit, Lemmy, Skool, Whop, Hashnode and Dev.to. Every plan has unlimited posts, and you can schedule follow-up comments under a post.

Buffer: Buffer posts to 12 networks, including Substack, Mastodon and Bluesky. The free plan holds 10 scheduled posts per channel at a time; paid plans remove that cap.

Team and client approval

Postiz: Standard is for 1 person; Team and up allow unlimited team members. Postiz has a preview link where others can leave comments, but we found no approve or request changes step.

Buffer: Essentials is for 1 user. Team adds unlimited users and approval workflows.

Inbox and replies

Postiz: We found no inbox for replying to comments, mentions or messages on its pricing page.

Buffer: A community inbox for replying to comments is on every plan. We found no direct message inbox on the pricing page.

Analytics and reports

Postiz: Analytics are included. We found no scheduled, PDF or white-label client reports on its pricing page.

Buffer: Reports are on Essentials and Team, and branded reports are on Team only. The free plan keeps 30 days of analytics.

AI help

Postiz: AI is a big part of Postiz: plans include AI images (100 to 500 a month from Team up) and AI videos (3 to 60 a month), plus an AI agent.

Buffer: An AI assistant for writing posts is included.

Integrations and apps

Postiz: Every plan includes the public API, the MCP server and a CLI, so tools like Claude and ChatGPT can schedule posts. The code is open source and can be self-hosted for free, and there is an official Android app.

Buffer: Every plan, including Free, has Start Page (a link in bio page), the browser extension, Canva, Google Drive and Dropbox. API access is on every plan with 3,000 to 15,000 requests a month, and Buffer lists an MCP for Claude, ChatGPT and Cursor.

Networks

Postiz lists 30 networks and Buffer lists 12. They share 11 networks: Facebook, Instagram, Threads, LinkedIn, Bluesky, X, TikTok, YouTube, Google Business Profile, Pinterest, Mastodon.

Strengths from each side

Postozo as a 3rd option

Postozo is a social media scheduler with 30 channel types, client review links, team roles, AI writing help, a public API and an MCP server. Plans are flat: $19, $29, $39, $79 a month for 5, 10, 30, 100 channels, with unlimited posts.

• Postozo costs $29 a month ($23 billed yearly) for 10 channels with team members. At 10 channels Postozo costs $23 a month against $31 for Postiz, so Postozo is $8 a month cheaper (26% less). At 10 channels Postozo costs $23 a month against $50 for Buffer, so Postozo is $27 a month cheaper (54% less).
• Postozo supports WhatsApp, SMS and Tumblr, which neither Postiz nor Buffer lists.
• Postozo has bulk upload (CSV), which neither confirms.
• Postozo has white label, which neither confirms.
• Postozo has client connect link, which neither confirms.

What you would give up: social inbox (Buffer has it) and canva integration (Buffer has it).

See Postozo vs Postiz and Postozo vs Buffer for the full head to head pages.

More about each tool

Postiz review, Postiz alternatives, Buffer review, Buffer alternatives, Postozo pricing.

Sources

Postiz facts checked on 29 September 2026 on these official pages: postiz.com/pricing, play.google.com/store/apps/details?id=postiz.com.mob. Prices and features change, so check postiz.com before you decide. Postiz is a trademark of its owner. Postozo is not affiliated with Postiz.

Buffer facts checked on 29 September 2026 on these official pages: buffer.com/pricing, buffer.com/pricing.md. Prices and features change, so check buffer.com before you decide. Buffer is a trademark of its owner. Postozo is not affiliated with Buffer.