The cheapest social media cross-posting tool is a free plan if you post to 3 accounts or fewer, and a flat-price plan once you pass about 10. Buffer, Zernio and Socialync are free for small setups; PostOnce is about $0.79 a day (billed yearly) for 15 accounts with unlimited posts. A tool that costs $5 for one account can cost $75 for fifteen.
Prices checked November 6, 2026, on each tool's official pricing page, billed monthly unless marked. Prices exclude tax where the vendor says so.
Below: what 9 tools really cost at 5, 10 and 15 accounts, each tool's cheapest plan and free option, and five ways to cut the bill. You'll see the price for your own setup, not the headline price. To check PostOnce's flat price for up to 15 accounts, see PostOnce pricing.
Cheapest options by situation:
- 1 to 3 accounts, a few posts a month: a free plan. Buffer covers 3 channels, Zernio 2 accounts, Socialync 5 posts a month.
- About 5 accounts: Zernio ($18), Publer ($20), Socialync ($20) and Nuelink ($24 for 10 channels).
- 11 to 15 accounts, posting every day: a flat price keeps costs steady. PostOnce is about $0.79 a day billed yearly ($29 month to month) for 15 accounts with unlimited posts.
- Video only, 1 account per network: Repostit's Basic plan is $5 a month for 10 video posts.
Disclosure: PostOnce publishes this guide and is one of the tools listed. All prices come from official pricing pages on November 6, 2026. They change often, so check the plan before you buy.
What is the cheapest social media cross-posting tool?
The cheapest social media cross-posting tool depends on your account count. For 1 to 3 accounts, free plans from Buffer, Zernio or Socialync cost $0. Around 5 accounts, Zernio, Publer, Socialync and Nuelink cost $18 to $24 a month. From 11 to 15 accounts, PostOnce's flat $29 plan costs less.
What cross-posting really costs at 5, 10 and 15 accounts
Most tools price by account (also called a channel, profile or brand), so the headline price only holds for a small setup. Here is what each tool costs per month, using each vendor's own pricing rules:
| Tool | How it's priced | 5 accounts | 10 accounts | 15 accounts |
|---|---|---|---|---|
| PostOnce | Flat: 15 accounts, unlimited posts | $29 | $29 | $29 |
| Zernio | Per account: 2 free, then $6, then $3 | $18 | $48 | $63 |
| Publer | Per account (calculator) | $20 | $36 | See calculator |
| Socialync | 5 accounts, then $2 per extra account | $20 | $30 | $40 |
| Nuelink | Flat: 10 channels | $24 | $24 | Higher plan |
| Buffer | $5 per channel, billed yearly | $25 | $50 | $75 |
| SocialPilot | 7 accounts, then $4 per extra account | $30 | $42 | $62 |
| Post Bridge | Flat: 15 accounts | $39 | $39 | $39 |
| SocialBee | Plans for 5, 10 or 25 profiles | $29 | $49 | $99 |
Not in this table: ShortSync prices by workspace, Repostit and Repurpose.io by accounts per network, Metricool by brand and Pallyy by social set, so their cost depends on your setup. Also, Socialync charges extra for more than one X account, Metricool sells X as an add-on. Your mix of networks can move you to a higher plan on any of them.
Cheapest cross-posting tools, compared
| Tool | Cheapest paid plan | Included | Free option |
|---|---|---|---|
| PostOnce | Creator: about $0.79/day billed yearly ($290/year), or $29 month to month | 15 accounts, unlimited posts, automatic crossposting | 7-day trial, up to 10 posts, no card |
| Repostit | Basic: $5/month | 10 video posts/month, 1 account per network | 14-day trial, no card |
| ShortSync | Creator: €14.99/month (€11.99/month yearly) | Unlimited uploads, 1 workspace | 5 uploads/month, no card |
| Zernio | Per account: first 2 free, then $6 each | Unlimited posts | 2 accounts free, no card |
| Publer | Professional: $5/month ($4/month yearly) | 1 account, unlimited scheduling | 3 accounts, 10 posts each |
| Socialync | Starter: $20/month ($15/month yearly) | 5 accounts, unlimited posts | 5 posts/month on up to 5 accounts |
| Buffer | Essentials: $5/channel/month, billed yearly | Unlimited posts within fair use | 3 channels, 10 queued posts each |
| Nuelink | Standard: $24/month | 10 channels, 365 queued posts | 7-day trial |
| Metricool | Starter: $25/month ($20/month yearly) | 5 brands, unlimited posts | 1 brand, 20 posts/month |
| Pallyy | Pro: $25/month ($20/month yearly) | 1 social set (one brand's networks) | 1 set, 15 image posts/month |
| SocialPilot | Essentials: $30/month ($25.50/month yearly) | 7 accounts | 14-day trial, no card |
| Repurpose.io | Starter: $35/month ($349/year) | 3 accounts per network, 5,000 videos/month | 14 days, 10 videos, no card |
| Post Bridge | Marketer: $39/month ($32.50/month yearly) | 15 accounts, unlimited posts | 7-day trial |
| SocialBee | Bootstrap: $29/month ($24/month yearly) | 5 profiles; Accelerate $49 for 10, Pro $99 for 25 | 14-day trial, no card |
Competitor prices are listed per month as shown on their pricing pages.
1. PostOnce: one flat price for up to 15 accounts
PostOnce costs the same whether you connect 5 accounts or 15: Creator is about $0.79 a day billed yearly ($290/year), or $29 month to month, with unlimited posts. Sending one post to three networks costs nothing extra.
It's also automatic: post natively on TikTok, Instagram or YouTube and each new post goes to your other accounts, so there's no second upload to pay for in time either. It covers TikTok, Instagram, YouTube, Facebook, LinkedIn, X, Threads, Bluesky and Pinterest, with photos, carousels and Stories as well as video. Pro is about $1.89 a day billed yearly ($69 month to month) for 50 accounts, and Agency about $5.45 a day ($199 month to month) for 200.
Choose PostOnce if you post often to many accounts and want one flat price. Try it free for 7 days with up to 10 posts and no card.
Every new TikTok post, on Instagram too.Connect once. PostOnce copies each new post for you.See how →Posts PostOnce copied from TikTok to Instagram in the last 30 days.
Source: PostOnce posting data.
2. Repostit: lowest paid price for a few videos a month
Repostit reposts videos automatically, for example a new TikTok to Instagram Reels, YouTube Shorts and Facebook Reels. Basic is $5 a month for 10 video posts with 1 account per network; Influencer is $29 a month ($240 a year) for 5 accounts per network. The trial is 14 days without a card.
Choose Repostit if you post a handful of videos a month.
3. ShortSync: low flat price for unlimited video uploads
ShortSync uploads a video once to many platforms, and can repost from Instagram or Facebook automatically. Creator is €14.99 a month (€11.99 a month billed yearly) for unlimited uploads in 1 workspace. The free plan allows 5 uploads a month without a card.
Choose ShortSync if you post lots of short videos and want a low flat price.
4. Nuelink: cheapest for 10 channels
Nuelink Standard is $24 a month for 10 channels and a 365-post queue, and includes its Instagram automation that shares new Reels to TikTok, YouTube Shorts and Facebook. There's a 7-day trial.
Choose Nuelink if you want a calendar plus Instagram crossposting for up to 10 channels.
5. Zernio: free for 1 or 2 accounts
Zernio charges per account: the first 2 are free, accounts 3 to 10 are $6 each and 11 to 100 are $3 each, with unlimited posts. It also has an API and MCP server for developers.
Choose Zernio if you post to one or two accounts, or you're building on its API.
6. Publer: low-cost per-account scheduling
Publer Professional starts at $5 a month for 1 account ($4 billed yearly); its calculator prices 5 accounts at $20 and 10 at $36. The free plan covers 3 accounts with 10 scheduled posts each.
Choose Publer if you schedule to a handful of accounts and want bulk tools.
7. Socialync: simple upload-once app for 5 accounts
Socialync Starter is $20 a month ($15 billed yearly) for 5 accounts and unlimited posts, with $2 per extra account. The free plan allows 5 posts a month on up to 5 accounts.
Choose Socialync if you upload each post yourself and want a simple dashboard.
8. Buffer: free for 3 channels
Buffer's free plan covers 3 channels with 10 queued posts each. Essentials is $5 per channel per month, so it stays cheap for small setups.
Choose Buffer if you post to 3 channels or fewer.
Is there a free social media cross-posting tool?
Yes, a free social media cross-posting tool works if you post a little. Buffer's free plan covers 3 channels, Zernio's covers 2 accounts, Socialync's allows 5 posts a month and Metricool's allows 20. PostOnce has a 7-day trial with up to 10 posts and no card.
Free plans are best for proving a workflow. Check the channel and post limits before you rely on one.
How to keep cross-posting costs down
- Count accounts, not networks. Two Instagram accounts and a Facebook Page are 3 accounts.
- Check the post limit. "Unlimited" plans often have a fair-use limit, and on some capped plans one post sent to three networks counts as three.
- Pay yearly if you're sure. Most tools take about 15 to 25% off, and PostOnce's yearly plan works out to about $0.79 a day.
- Use the trial on your hardest post, such as a Reel with original audio, before you pay.
- Pick automatic crossposting if you post daily. The cheapest tool is the one you don't have to open for every post.
Frequently asked questions
What is the cheapest way to cross-post TikTok to Instagram and YouTube?
Repostit's $5 Basic plan covers 10 video posts a month. If you post daily, PostOnce's flat plan (about $0.79 a day billed yearly) has unlimited posts. See TikTok to Instagram and TikTok to YouTube.
Is PostOnce cheaper than Repurpose.io?
PostOnce Creator is about $0.79 a day billed yearly, or $29 month to month, for 15 accounts. Repurpose.io Starter is $35 a month for 3 accounts per network. See the full Repurpose.io vs PostOnce comparison.
For more tools, see the best crossposting tools and the Zapier and IFTTT alternatives for crossposting.
