Postbrander vs Supergrow
Postbrander and Supergrow both write LinkedIn posts in your voice and publish them through LinkedIn's official API. Supergrow is built for teams, with approvals and an engagement tool, from $39 a month. Postbrander is built for one person posting consistently, with stricter checks on every draft, from free or £9.99 a month.
Short answer
Pick Supergrow if you're running LinkedIn for a team: it has approval workflows, publishing on behalf of colleagues, and a tool for commenting on other people's posts. Pick Postbrander if you're one person who wants to post every week without the posts reading like AI, and you'd rather pay £9.99 than $39.
Pricing at a glance
| Postbrander | Supergrow | |
|---|---|---|
| Free plan | 7 posts and 10 AI drafts a month | None |
| Trial | 60 days of Basic, no card | 7 days on any plan |
| Individual plan | Basic, £9.99/month: unlimited posts, 100 AI drafts, 3 voice profiles, 2 LinkedIn connections | Pro, $39/month ($31/month yearly): 1 account |
| Team plan | None | Teams, $199/month ($189/month yearly): 5 accounts |
| Larger organisations | None | Enterprise, custom pricing |
Supergrow prices are in US dollars, from supergrow.ai/pricing on 11 October 2026. Postbrander prices are on our pricing page.
Where Supergrow is stronger
Teams. Supergrow's Teams plan has feedback and approval workflows, a draft-to-published kanban board, an organisation dashboard, publishing on behalf of team members, and team analytics with a leaderboard. Postbrander has nothing comparable for approvals.
Engaging with other people's posts. Supergrow's Engage tool lets you build lists of people and company pages, work through their posts in one place, and get AI comment suggestions. Postbrander focuses on your own posts.
More ways in. Supergrow's PostCast is an AI interviewer that turns a 10 to 15 minute conversation into several draft posts, and it can repurpose YouTube videos, articles and PDFs. Postbrander turns a voice note into a draft and repurposes text you paste in (a blog, transcript, newsletter or thread), but doesn't take YouTube links or PDFs.
Supergrow also lists an MCP connection for AI assistants such as Claude and ChatGPT, a weekly report, and describes itself as a LinkedIn Verified Partner.
Where Postbrander is stronger
Price. Basic is £9.99 a month against Supergrow Pro at $39, and Postbrander has a free plan for 7 posts a month. Supergrow has no free plan.
Checking every draft. Since July 2026 anyone can report a LinkedIn post as "Seems like AI slop". Postbrander checks each draft against 110 banned words, 44 stock phrases and 39 sentence patterns readers link with AI, runs a fact-check on claims, and won't invent a story when your brief doesn't contain one. Supergrow's pages talk about sounding like you but don't describe a fact-check.
Deeper post stats. Supergrow's analytics page lists impressions, likes, comments, reshares and engagement rate per post. Postbrander shows those and adds people reached, saves, sends, link clicks, followers gained and profile views for each post, with a sortable table and breakdowns by format, day and length. See analytics.
Feature comparison
| Feature | Postbrander | Supergrow |
|---|---|---|
| Publishes via LinkedIn's official API | Yes | Yes |
| Learns your voice from your posts | Yes | Yes |
| Voice note to post | Yes | Yes |
| AI interview to drafts | No | Yes (PostCast) |
| Repurpose pasted text | Yes | Yes |
| Repurpose YouTube or PDF | No | Yes |
| Scheduling and calendar | Yes | Yes |
| Automatic first comment | Yes | Yes |
| Carousel maker | Yes | Yes |
| AI-pattern check on every draft | Yes | Not described |
| Fact-check on claims | Yes | Not described |
| Saves, sends, link clicks per post | Yes | Not listed |
| Commenting tool for others' posts | No | Yes (Engage) |
| Approval workflows | No | Yes (Teams) |
| Free plan | Yes | No |
"Not described" and "Not listed" mean Supergrow's own pages don't mention it as of 11 October 2026. It may still exist.
Pick Supergrow if
- You manage LinkedIn for a team or several executives
- Posts need approving before they go out
- You want a workflow for commenting on other people's posts
- You'd rather talk through ideas with an AI interviewer
Pick Postbrander if
- You're one person who wants to post every week
- You want every draft checked for AI tells and shaky claims
- You want saves, sends and link clicks for each post
- You want a free plan, or to pay £9.99 rather than $39
How we checked
Written by James Burfield, who builds Postbrander, so read it knowing that. Every Supergrow detail comes from Supergrow's own pages, read on 11 October 2026. If something here is out of date, email hello@postbrander.com and we'll fix it.
Related reading
Frequently asked questions
Is Postbrander a Supergrow alternative?+
Yes. Both write LinkedIn posts in your voice and publish them through LinkedIn's official API. Postbrander costs £9.99 a month and has a free plan. Supergrow starts at $39 a month for one account and offers a 7-day trial. Supergrow goes further on teams and engagement tools; Postbrander goes further on checking drafts and per-post stats.
How much does Supergrow cost compared with Postbrander?+
Supergrow Pro is $39 a month, or $31 a month billed yearly, for one LinkedIn account. Teams is $199 a month for 5 accounts, and Enterprise is custom. Postbrander's free plan covers 7 posts a month, and Basic is £9.99 a month for unlimited posts. New Postbrander accounts get 60 days of Basic free with no card.
Which is better for a team or agency?+
Supergrow, on what each site lists. Its Teams plan adds approval workflows, an organisation dashboard, publishing on behalf of team members and team analytics. Postbrander is built for individuals: Basic covers 2 LinkedIn connections and 3 voice profiles, and Amplify lets colleagues support each other's posts, but there's no approval workflow.
Does either tool stop posts reading like AI?+
Both say their drafts sound like you, because they learn from your own posts. Postbrander also checks every draft against 110 banned words, 44 stock phrases and 39 sentence patterns readers link with AI, flags claims worth confirming, and won't invent stories you never told it. Supergrow's site doesn't describe a fact-check.
What post stats does each tool show?+
Supergrow's analytics page lists impressions, likes, comments, reshares and engagement rate per post, plus follower growth and profile views for your account and a weekly report. Postbrander shows those per post and adds people reached, saves, sends, link clicks, followers gained and profile views from each post, once you connect post stats.