There is no free plan. The official pricing page only has three paid plans: Starter, Pro, and Pro Plus. Each plan card has a button that says "Start 7-day trial For Free" and is marked "US$0.00 today - cancel anytime", which means a 7-day free trial rather than a permanent free tier. The page and FAQ, including the full feature comparison table, do not have a Free plan column. The website does not disclose how the trial will be handled after it expires. The lowest paid threshold for comparison is the Starter plan at US$29/month (monthly), which includes 10 social media accounts, unlimited scheduled posts and drafts, unlimited team members, 1 workspace, 50GB media library, 1,000 AI credits/month, and 100 daily API posts. Additional workspaces can be purchased for US$19/month. (Checked on 2026-08-09 at postsyncer.com/pricing)
Free plan US$0, "Free forever". Included credits are "1,000 one-time", i.e. a single 1,000-credit grant (not monthly); the Weekly refresh column shows "–", meaning no weekly top-up (only paid plans get Pro +2,000/week and Max +4,000/week, reset every 7 days and not accumulated). 1 workspace, cannot invite teammates. Concurrent executions capped at 10; rate limits of 50 sync runs/min, 200 async runs/min and 30 API endpoint calls/min; execution timeouts of 5 minutes (sync) and 90 minutes (async); storage of 5GB of files, up to 5 tables, up to 50,000 rows per table, 30 days log retention. Not included on the free plan: Sim Mailer (Inbox), KB Live Sync, Sandboxes, Slack Connect, Access Control, SSO, SOC2 Compliance, Self Hosting, Dedicated Support. When credits run out, the official docs state "usage is capped at your plan's included credits and runs will stop" (runs stop by default; paid plans can enable on-demand overage at US$0.005/credit). 1 credit = US$0.005 (docs). The source conflict recorded on 2026-08-09 ("pricing page monthly vs docs one-time") is resolved: on 2026-09-16 both the pricing page and docs.sim.ai/platform/costs show 1,000 one-time / Pro 6,000 per month / Max 25,000 per month. Sim is an open-source project. (Read directly from sim.ai/pricing and docs via playwright on 2026-09-16)
Cheapest paid plan: US$25 / user / mo（5 user ≈ US$125/mo）
US$29/month: 10 social accounts, 1 workspace, 1,000 AI credits/month, API 100 posts/day; billed annually averages US$24/month
Pro
US$49 / mo
US$49/month: 15 social accounts, 2 workspaces, 1,000 AI credits/month, API at 250 posts/day; annual monthly-equivalent US$39.
Pro Plus
US$49 / mo
US$49/month: The promotional price on the official website was confirmed to have increased from US$39 to US$49 as of 2026-08-22 (the original price is still listed as US$99). This plan includes 30 social media accounts, 3 workspaces, 2,000 AI credits/month, 500 API posts/day, and unlimited storage. The annual payment tab does not mention any additional discounts, and it is unclear whether the monthly average for annual payments is the same as the monthly promotional price, pending further confirmation.
Additional workspaces available as an add-on
US$19 / mo
US$19/extra workspace/month
Sim
Plan
Price
What you get
Pro
US$25 / user / mo（5 user ≈ US$125/mo）
US$25 per user/month: 6,000 credits/month + Weekly refresh of +2,000/week (reset every 7 days, not accumulated); annual billing averages US$21/month (site shows 15% off; docs state US$21.25/month = US$255/year); usage is capped at the plan's included credits by default, with optional on-demand overage at US$0.005/credit
Max
US$100 / user / mo（5 user ≈ US$500/mo）
US$100 per user/month: 25,000 credits/month + Weekly refresh of +4,000/week; annual billing averages US$85/month (15% off; docs state US$1,020/year); includes Sim Mailer (Inbox), KB Live Sync, Sandboxes and Slack Connect; does not include Access Control, SSO, SOC2, Self Hosting or Dedicated Support
Enterprise
Official quote (upon inquiry)
Pricing not published on the official site — contact sales
Which one should you pick?
If you want to try before paying, Sim has a free plan and PostSyncer does not — start with Sim.
PostSyncer：US$19 / mo；Sim：US$25 / user / mo。Plans priced per person need to be multiplied by the number of people, and prices cannot be directly compared.
FAQ
Is there a free version of PostSyncer?
No public free plan — a subscription is required.
How much does PostSyncer cost?
The cheapest is the plan from PostSyncer named Additional workspaces available as an add-on, at about US$19 / mo.
Does PostSyncer support Chinese?
PostSyncer has no Chinese interface at this time.
Is there a free version of Sim?
Yes. Free plan US$0, "Free forever". Included credits are "1,000 one-time", i.e. a single 1,000-credit grant (not monthly); the Weekly refresh column shows "–", meaning no weekly top-up (only paid plans get Pro +2,000/week and Max +4,000/week, reset every 7 days and not accumulated). 1 workspace, cannot invite teammates. Concurrent executions capped at 10; rate limits of 50 sync runs/min, 200 async runs/min and 30 API endpoint calls/min; execution timeouts of 5 minutes (sync) and 90 minutes (async); storage of 5GB of files, up to 5 tables, up to 50,000 rows per table, 30 days log retention. Not included on the free plan: Sim Mailer (Inbox), KB Live Sync, Sandboxes, Slack Connect, Access Control, SSO, SOC2 Compliance, Self Hosting, Dedicated Support. When credits run out, the official docs state "usage is capped at your plan's included credits and runs will stop" (runs stop by default; paid plans can enable on-demand overage at US$0.005/credit). 1 credit = US$0.005 (docs). The source conflict recorded on 2026-08-09 ("pricing page monthly vs docs one-time") is resolved: on 2026-09-16 both the pricing page and docs.sim.ai/platform/costs show 1,000 one-time / Pro 6,000 per month / Max 25,000 per month. Sim is an open-source project. (Read directly from sim.ai/pricing and docs via playwright on 2026-09-16)
How much does Sim cost?
The cheapest is the plan from Sim named Pro, at about US$25 / user / mo.
Does Sim support Chinese?
Sim only partially supports Chinese.
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