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Last Updated: November 4, 2026
PostOnce at a glance
- Type: Specialist (automatic crossposting)
- Best for: Creators and small businesses that post on one main platform and want it everywhere else
- Starting price: $24 a month billed yearly ($290 a year), $29 monthly (15 accounts)
- Free plan or trial: No free plan; 7-day free trial, no credit card
- Our take: A low-cost way to post once and publish to nine networks, with an API and MCP on every plan
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Pricing and sign-up terms as of the Last Updated date above. Set by the provider and can change; confirm on their site.
PostOnce review: what it is
This PostOnce review is for the owner who already posts in one place, usually TikTok, Instagram, or YouTube, and knows the same post should be on every other network too. PostOnce is a specialist crossposting tool. You choose a source account and the destination accounts, set up a workflow once, and PostOnce publishes each new post to the other networks through each platform’s official posting API.
It supports Instagram, TikTok, YouTube, Facebook, LinkedIn, X, Threads, Bluesky, and Pinterest. PostOnce is run by Nigel Yong (YSY Ventures) in Montreal and launched publicly in July 2026, so it is one of the newest tools we cover.
How PostOnce saves you a hire
PostOnce covers the most repetitive part of a social media assistant’s job: downloading a post, rewriting the caption, and uploading it again to five or six other apps. Once a workflow is set, new posts on your source account go out to your other accounts without anyone touching them. You can set captions per network, schedule posts, and push older content back out, so the back catalog keeps working too.
It also fits the way more owners now work with AI. Every plan includes a developer API and an MCP server, and PostOnce’s terms describe using it directly from ChatGPT and other MCP-compatible AI assistants. That means an assistant you already use can draft, schedule, or publish through your PostOnce account. What stays with you is the content itself and checking that each post fits each network.
Best for
- Creators who make short video for one app. If TikTok, Reels, or Shorts is where you create, PostOnce gets the same video onto the other networks automatically.
- Small businesses that keep neglecting their other accounts. One active channel can keep five quiet ones alive.
- People running several brands, and small agencies. Plans are priced by social accounts (15, 50, or 200) with unlimited posts, and a Partner API lets a business build PostOnce publishing into its own product.
Strengths
- Source-to-destination workflows. Post on your main app and PostOnce publishes to the rest through official APIs.
- Nine networks. Instagram, TikTok, YouTube, Facebook, LinkedIn, X, Threads, Bluesky, and Pinterest.
- Unlimited posts and workflows on every plan. You pay for the number of accounts, not for volume.
- Per-network captions, scheduling, and reposting. Tools for existing content and image repurposing are included on every plan.
- API and MCP on every plan. Use it from ChatGPT or another MCP-compatible assistant, or connect Zapier, Make, or n8n.
- Clear data terms. Its privacy policy says your posts and media are not used to train AI models and are never sold.
What it costs
| Plan | Monthly | Billed yearly | Social accounts | Support |
|---|---|---|---|---|
| Creator | $29 | $290 a year (about $24 a month) | 15 | Human support |
| Pro | $69 | $690 a year ($57.50 a month) | 50 | Priority human support |
| Agency | $199 | $1,990 a year (about $166 a month) | 200 | Priority human support |
Every plan includes all supported platforms, unlimited workflows and posts, scheduling, existing-content tools, image repurposing, and API and MCP access. Plans differ only in account limits and support. The yearly plans work out to two months free. There is no free plan, but there is a 7-day free trial with no credit card, and you can request a full refund within 7 days of a payment by emailing PostOnce support. Subscriptions renew automatically until you cancel in your account settings.
Fine print: your plan caps how many social accounts you can connect. PostOnce does not guarantee that every post publishes, and each network’s own rules and API limits still apply. If you connect an AI assistant, its requests count as your instructions, so review what it plans to post before you confirm. Prices verified in US dollars on postonce.to on November 4, 2026. Pricing and plans are set by PostOnce and can change, so confirm current pricing on their site before you subscribe.
What changed recently (as of November 2026): PostOnce’s current terms (September 2026) add its MCP server, ChatGPT integration, and a Partner API for businesses that publish on behalf of their own customers.
Is PostOnce right for you?
If you already create on one main app and the rest of your accounts sit quiet, PostOnce fits. At $29 a month for 15 accounts with unlimited posts, it makes “be everywhere” affordable, and the API and MCP access let your AI assistant do the posting.
If you want the most established tool for this exact job, Repurpose.io has done video crossposting for longer and is the top pick in our repurposing roundup (see our Repurpose.io review). If you write fresh posts for each network and want a planning calendar with recycling and RSS automation, Publer is built more around scheduling and has a free plan (see our Publer review). If you want AI to draft the posts in the first place, PostSyncer’s content agent turns a link or a document into posts (see our PostSyncer review). If you only run three or four accounts and want automation hooks at the lowest price, PostFast starts around €10 a month billed yearly (see our PostFast review).
Solo owners can start PostOnce’s Creator plan with room to spare: 15 accounts covers every network for one brand, and the trial needs no card. Small teams and owners with several brands should look at Pro, since 50 accounts and priority support cost less than paying a person to repost. Either way, PostOnce is new, with few independent reviews yet, so use the 7-day trial and the refund window to confirm your networks and formats publish cleanly. If they do, PostOnce is a simple, low-cost way to post once and show up everywhere.
PostOnce is a recent addition, so it isn’t ranked in our roundup yet. In the meantime, see how Repurpose.io and the other established tools compare in our roundup of the best AI content repurposing tools.
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PostOnce FAQ
Is PostOnce free?
There is no free plan, but there is a 7-day free trial with no credit card. Paid plans start at $29 a month, or $290 a year (about $24 a month), as of November 2026.
Which platforms does PostOnce support?
Instagram, TikTok, YouTube, Facebook, LinkedIn, X, Threads, Bluesky, and Pinterest. Each network’s own posting rules still apply.
Does PostOnce use my data to train its AI?
No. PostOnce’s privacy policy says it does not use your posts, captions, images, videos, or artwork to train AI or machine learning models, and does not sell or license them for that purpose. A few features, such as removing comment or DM prompts from a caption, send that text to an AI provider only to perform the feature. Login tokens are encrypted, and disconnecting an account deletes its stored token.
Can I use PostOnce from an AI assistant?
Yes. Every plan includes API and MCP access, and PostOnce supports ChatGPT and other MCP-compatible assistants. PostOnce receives only what the assistant sends for each request, not your whole conversation.
Can I get a refund?
Yes. PostOnce offers a full refund within 7 days of a payment. Email its support team to request it.
Bottom line
PostOnce does one job well on paper: make a post you already made appear on every other network, for a flat price by account count with unlimited posts. API and MCP access on every plan make it a natural fit for owners who run their work through AI assistants. It is very new, so Repurpose.io remains the safer established choice, but for creators and small businesses who want broad reach at $29 a month, PostOnce is worth a 7-day trial, no card needed.
Compare the field in our roundup of the best AI content repurposing tools, see the schedulers in our best AI social media scheduling tools roundup, and build the rest of your stack with the AI Tool Guide for solopreneurs and small business.
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