PostJay vs Buffer: Which Social Media Scheduler in 2026?

TL;DR: Choose Buffer if you want a genuinely free plan, dead-simple scheduling for two or three channels, and a mature, battle-tested tool with a link-in-bio Start Page. Choose PostJay if you publish to more platforms, want built-in AI and agent access (MCP/REST API), or prefer flat pricing that does not climb per channel. Both are solid; the right pick depends on scale.

If you have narrowed your social media scheduler down to PostJay vs Buffer, you are comparing two genuinely good tools that solve the same problem in different ways. Buffer is the established name — simple, trusted, and free to start. PostJay is the newer, AI-native option with broader platform coverage and flat pricing. This comparison puts both on the same criteria, shows Buffer's real cost, and tells you honestly where each one wins so you can decide.

PostJay vs Buffer at a glance

Criteria	PostJay	Buffer
Platforms	9 (Instagram, TikTok, YouTube, LinkedIn, Facebook, Pinterest, Threads, Bluesky, X)	Similar major networks plus Mastodon, Google Business Profile, Start Page
Free option	No free plan — 7-day free trial ($0 today, card required)	Yes — genuine free plan, 3 channels, ~10 posts/channel, no card
Starting paid price	Flat $9/mo (Starter)	~$5/mo per channel (Essentials, annual); ~$6 monthly
AI features	Built-in caption, hashtag & hook generators	AI Assistant for drafting and rewrites
MCP / API (AI agents)	Yes — MCP server + REST API (post from Claude, ChatGPT, Cursor)	No comparable agent-native MCP
Client approval	Yes (Unlimited plan)	Yes (Team plan, per channel)
Best for	Multi-platform creators & agencies wanting AI + flat pricing	Solo creators wanting free, simple 2–3 channel scheduling

Buffer pricing verified on buffer.com in 2026; per-channel rates and free-tier limits change, so confirm before buying.

Platform coverage

PostJay supports nine platforms: Instagram, TikTok, YouTube, LinkedIn, Facebook, Pinterest, Threads, Bluesky, and X. That covers essentially every network a creator or small brand publishes to in 2026, including newer ones like Threads and Bluesky and video-first platforms like TikTok and YouTube with per-platform customization.

Buffer covers the same major networks and adds a few PostJay does not, notably Mastodon and Google Business Profile, plus its own Start Page link-in-bio landing page. If you rely on Google Business Profile posting or want a built-in link-in-bio page, that is a real point for Buffer — PostJay does not offer either today.

For most people the practical networks overlap heavily. The difference shows up at the edges: PostJay leans into Bluesky and Threads and treats TikTok/YouTube as first-class, while Buffer brings Google Business Profile and its Start Page to the table. If you want to schedule to Instagram or TikTok specifically, both handle it well.

Pricing: per-channel vs flat

This is where the two tools diverge most, and it is worth doing the math on your own setup.

Buffer is priced per channel. The free plan gives you 3 channels and roughly 10 scheduled posts per channel at a time — genuinely free, no card. Paid Essentials is about $5/mo per channel on annual billing (around $6 billed monthly), and Team is about $10/mo per channel. There is a 14-day trial on paid plans, and volume discounts kick in above 10 channels. The model is elegant for small setups: one channel on Essentials is around $5/mo. But it compounds — five channels on Essentials is roughly $25/mo, and ten is around $50/mo.

PostJay is flat. There is no free plan, but every tier has a 7-day free trial ($0 today, credit card required, cancel anytime):

• Starter — $9/mo: 5 accounts, 200 AI generations/mo, all 9 platforms, MCP + API.
• Creator — $19/mo: 15 accounts, unlimited posts and AI, video/carousel, bulk scheduling.
• Unlimited — $29/mo: unlimited everything, client approval, higher API limits.

Annual billing gives you two months free. Because the price does not scale per channel, PostJay gets cheaper relative to Buffer the more accounts you run. At two channels Buffer is cheaper (or free); by five to ten accounts, PostJay's flat $9–$29 usually wins. See the full breakdown on the pricing page.

The honest summary: Buffer is cheaper — or free — at low channel counts. PostJay is cheaper once you scale accounts.

AI and automation

Both tools have AI, but the depth differs. Buffer's AI Assistant helps you draft posts, repurpose content, and rewrite for different networks — useful, and included across plans.

PostJay builds AI in more deeply with dedicated caption, hashtag, and hook generators (you can try the caption generator free), plus a visual calendar and bulk scheduling. The bigger differentiator is agent access: PostJay ships an MCP server and a REST API, so AI agents like Claude, ChatGPT, and Cursor can draft and schedule posts programmatically — starting from the $9/mo Starter plan, with higher limits on Unlimited. If you want an AI agent to run part of your publishing workflow, that is a genuine edge Buffer does not currently match. More on how that works on our AI and API page.

Ease of use and maturity

Here Buffer wins, and it is not close on maturity. Buffer has been around for well over a decade, has published to billions of posts, and is one of the most polished, stable, well-documented schedulers on the market. Its interface is famously simple — connect a channel, fill the queue, done. For someone who wants to schedule a handful of posts with zero learning curve, Buffer is hard to beat, and its ecosystem of integrations, browser extensions, and mobile apps is deep.

PostJay is newer. It is fast and clean, but it does not have Buffer's years of hardening, its integration marketplace, or its brand recognition. If longevity, a proven track record, and a huge support community matter to you, that is a point for Buffer.

Where Buffer is the better choice

An honest comparison has to hand the competitor its real wins, and Buffer has several:

• You want a free plan. PostJay has no free tier, only a 7-day trial. Buffer's free plan lets you publish to 3 channels indefinitely at no cost — the single biggest reason to pick it.
• You manage only 2–3 channels. Per-channel pricing (or the free plan) makes Buffer the cheapest option at this scale.
• You want dead-simple scheduling. Buffer's stripped-back queue is the gentlest possible on-ramp.
• You need a link-in-bio page or Google Business Profile posting. Buffer's Start Page and GBP support cover use cases PostJay does not.
• Brand maturity matters. Buffer's track record and ecosystem are unmatched by a newer tool.

If any of those describe you, pick Buffer — you will be happy.

Where PostJay fits better

PostJay is the stronger fit when you outgrow simple, single-channel scheduling:

• You publish to more platforms. Nine networks with per-platform customization, including strong Bluesky, Threads, TikTok, and YouTube support.
• You want AI built in. Caption, hashtag, and hook generators plus a visual calendar, without bolting on extra tools.
• You want AI agents to post for you. The MCP server and REST API let Claude, ChatGPT, and Cursor schedule content — unique among mainstream schedulers.
• You run several accounts. Flat $9–$29/mo pricing does not climb per channel, so it is predictable and usually cheaper at scale.
• You handle client approvals. The Unlimited plan lets clients approve posts via a shareable link, with no extra seats to buy.

Verdict by buyer type

• Solo creator, 1–3 accounts, tight budget: Buffer. The free plan or ~$5/channel Essentials is the most cost-effective, and the simplicity is a feature.
• Growing creator on 4+ platforms who wants AI: PostJay. Nine platforms, built-in AI, and flat pricing pull ahead once you pass a few channels.
• Developer or AI-forward team: PostJay. The MCP + REST API for agent-driven posting is the deciding factor.
• Agency managing many client channels: PostJay Unlimited ($29/mo flat with client approval) usually beats Buffer's per-channel Team plan on total cost — but price out both against your channel count.
• Someone who wants a link-in-bio page or Google Business Profile: Buffer, thanks to Start Page and GBP support.

If you are weighing free options more broadly, our roundup of the best free social media schedulers in 2026 is worth a read, and if Buffer and PostJay both feel too limited for a bigger team, see our Hootsuite alternatives guide.

Frequently asked questions

Is PostJay free?

No, PostJay does not have a permanent free plan. Every plan includes a 7-day free trial that costs $0 today and can be cancelled anytime, though a credit card is required to start. After the trial, paid plans run from $9/mo for Starter up to $29/mo for Unlimited, with two months free on annual billing.

Does Buffer have a free plan?

Yes. Buffer offers a genuine free plan with up to 3 connected channels and around 10 scheduled posts per channel at a time, with no credit card required. It is one of the main reasons people choose Buffer, especially solo creators who only manage a couple of accounts and want to publish for free indefinitely.

How much does Buffer cost?

Buffer charges per channel. The Essentials plan is roughly $5/mo per channel on annual billing (about $6 monthly), and Team is around $10/mo per channel. Costs scale with how many channels you connect, so five channels on Essentials runs about $25/mo. Always check buffer.com for current pricing.

Can PostJay post from ChatGPT or Claude?

Yes. PostJay ships an MCP server and a REST API, so AI agents like Claude, ChatGPT, and Cursor can draft and schedule posts programmatically. This is available from the $9/mo Starter plan, with higher API limits on Unlimited. Buffer does not currently offer a comparable agent-native MCP integration.

Which is better for agencies, PostJay or Buffer?

It depends on workflow. Buffer's Team plan adds approval workflows priced per channel, which suits smaller setups. PostJay's Unlimited plan at $29/mo includes client approval via shareable link plus unlimited accounts at a flat rate, which is usually cheaper once you manage many client channels.

Ready to see PostJay in action across all nine platforms? Start your 7-day free trial — $0 today, cancel anytime — or learn how to schedule posts across every platform first.