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 10 features we track, Postiz alone has RSS auto post, and Buffer alone has client approval and social inbox.
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 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.
| Plan | Monthly | Yearly/mo |
|---|---|---|
| Postiz Standard | $29 | $23 |
| Postiz Team | $39 | $31 |
| Postiz Pro | $49 | $39 |
| Postiz Ultimate | $99 | $79 |
| Plan | Monthly | Yearly/mo |
|---|---|---|
| Buffer Free | Free | Free |
| Buffer Essentials | $6 | $5 |
| Buffer Team | $12 | $10 |
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.
| Postiz | Buffer | Postozo | |
|---|---|---|---|
| 5 channels | Standard plan: $29 a month ($23 billed yearly) | Essentials plan: $30 a month ($25 billed yearly) | Standard plan: $19 a month ($15 billed yearly) |
| 10 channels | Team plan: $39 a month ($31 billed yearly) | Essentials plan: $60 a month ($50 billed yearly) | Team plan: $29 a month ($23 billed yearly) |
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).
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
| Feature | Postiz | Buffer | Postozo |
|---|---|---|---|
| Client approval | No | Yes | Yes |
| Social inbox | No | Yes | No |
| Analytics | Yes | Yes | Yes |
| AI writing help | Yes | Yes | Yes |
| Public API | Yes | Yes | Yes |
| MCP server | Yes | Yes | Yes |
| RSS auto post | Yes | Not confirmed | Yes |
| Bulk upload (CSV) | Not confirmed | Not confirmed | No |
| White label | Not confirmed | Not confirmed | Yes |
| Mobile app | Yes | Yes | No |
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).
Both list analytics, AI writing help, public API, MCP server and mobile app.
Neither confirms bulk upload (CSV) and white label.
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.
| Networks | |
|---|---|
| Only on Postiz | Reddit, Telegram, Discord, Slack, Dribbble, Whop, Twitch, Skool, Kick, Warpcast, VK, Lemmy, MeWe, Nostr, Listmonk, WordPress, Medium, Hashnode, Dev.to |
| Only on Buffer | Substack |
| On Postozo but on neither | Tumblr |
Strengths from each side
Postiz
- Includes AI image generation, AI videos and AI video clipping on its plans.
- Open source, so you can self-host it for free.
- Has an official Android app.
Buffer
- Has a free plan for up to 3 channels.
- Has iOS and Android apps and a browser extension.
- Includes a community inbox to reply to comments.
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 Tumblr, which neither Postiz nor Buffer lists.
- Postozo has white label, which neither confirms.
What you would give up: social inbox (Buffer has it) and mobile app (Postiz and Buffer have 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
Questions
Is Postiz or Buffer cheaper?
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). Prices are the lowest listed per month, with yearly billing where offered, checked on 29 September 2026.
Which has more networks, Postiz or Buffer?
Postiz lists 30 and Buffer lists 12. Only Postiz: Reddit, Telegram, Discord, Slack, Dribbble, Whop, Twitch, Skool, Kick, Warpcast, VK, Lemmy, MeWe, Nostr, Listmonk, WordPress, Medium, Hashnode, Dev.to. Only Buffer: Substack.
Do Postiz and Buffer have an API and MCP server?
Postiz: API yes, MCP yes. Buffer: API yes, MCP yes. Postozo includes both on every plan.
Is there a cheaper option than Postiz and Buffer?
Postozo is $19 a month for 5 channels and $29 for 10 with a team. It has no social inbox, bulk upload (CSV) and mobile app, so check those first.
Did you test Postiz and Buffer?
No. This page compares facts from their official pricing and feature pages, checked on 29 September 2026.
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