Postbridge vs Supergrow
An honest comparison of Postbridge and Supergrow: pricing, free trial, AI writing, scheduling, analytics, carousels, comments and languages. Facts checked against the official pages.
Competitor data checked in November 2026 on the official page. Source: supergrow.ai/pricing
What is Postbridge?
Postbridge is an AI content platform built for LinkedIn: it generates ideas and posts in your authentic voice, schedules publications, tracks results, creates carousels, organizes comments with AI reply suggestions and surfaces a radar of trending posts and news in your niche. Interface in English, Portuguese and Spanish, plans from $10/mo and a 7-day free trial.
What is Supergrow?
Supergrow is a LinkedIn content platform that builds a “Content DNA” (voice profile) and generates drafts from audio interviews with an AI interviewer (PostCast). It includes scheduling with queue and auto first-comment, a carousel maker, an engagement mode with AI comments, weekly analytics and an MCP integration. The individual plan costs $39/mo.
Side-by-side comparison
Postbridge and Supergrow features, taken from each product's official pages.
| Feature | PostbridgeRecommended | S Supergrow |
|---|---|---|
Built exclusively for LinkedIn Product designed around LinkedIn's algorithm and formats | Yes | Yes |
AI post writing Generates and rewrites full posts | Yes | YesContent DNA + PostCast |
AI trained on your voice Learns your tone and style from what you already wrote | Yes | Yes |
Idea generation Suggests topics and angles so you never run dry | Yes | YesAI interviews |
Post scheduling Publishes automatically at the chosen time | Yes | YesQueue + first comment |
Analytics Views, engagement and follower growth | Yes | YesWeekly report |
Carousel creator Builds PDF carousels for LinkedIn | YesAdvanced plan | Yes |
Comments inbox Centralizes comments and suggests replies | YesInbox + AI suggestions | PartialEngage (comment on others' posts) |
Trending radar Trending posts and news in your niche | YesRadar | Not disclosed |
Chrome extension Works inside LinkedIn | Yes | Not disclosed |
Other social networks Also posts to X, Instagram, TikTok, etc. | NoLinkedIn only | No |
Interface in Portuguese and Spanish In addition to English | YesPT, EN, ES | Not disclosed |
Free trial Try before you pay | Yes7 days | Yes7 days |
Supergrow strengths
- Voice profile (Content DNA) and audio interviews that turn into multiple drafts
- Scheduling with queue and auto first-comment
- Carousel maker included in the individual plan
- Team features: challenges, leaderboard and Slack notifications
Supergrow limitations
- $39/mo for a single profile, almost 4x Postbridge's Essential plan
- Big jump to the Teams plan ($199/mo)
- Inbox for incoming comments and trending radar not disclosed
- Interface languages not disclosed
Which one should you pick?
No tool is perfect for everyone. Here is the scenario where each one makes more sense.
Pick Supergrow if…
- You would rather talk than type and want audio interviews turned into posts
- You run a team of executives and want leaderboards, challenges and Slack
- You want an MCP integration to use Claude or ChatGPT with your data
Pick Postbridge if…
- You want AI in your voice for $10/mo instead of $39
- You want to answer incoming comments in an inbox with AI suggestions
- You want a radar of trending posts and news in your niche, in Portuguese, English or Spanish
Pricing
Postbridge and Supergrow plans as of November 2026.
Postbridge
7-day free trial on every plan. Cancel anytime.
- Essential$10/month
3 posts per week · 9 ideas per week · 18 AI rewrites · Basic analytics · Email support
- Professional$18/month
4 posts per week · 12 ideas per week · 24 AI rewrites · Advanced analytics · Engagement heatmaps · Priority support
- Advanced$25/month
5 posts per week · 15 ideas per week · 30 AI rewrites · Carousel creator · Content performance insights · Premium 24/7 support
Billed in Brazilian reais (R$59 / R$79 / R$99); USD values are approximate.
- Free trial
- 7 days
- Platforms
- Interface languages
- English, Portuguese and Spanish
Supergrow
Pro $39/mo ($31/mo billed annually) for 1 profile; Teams $199/mo ($189/mo billed annually) for 5 profiles; Enterprise on request. Every plan includes a 7-day free trial.
- Pro$39/mo
$31/mo billed annually
1 profile
- Teams$199/mo
$189/mo billed annually
5 profiles
- EnterpriseCustom
More than 5 executives
- Free trial
- 7-day free trial
- Platforms
- Interface languages
- Not disclosed
Source: https://www.supergrow.ai/pricing (2026-11)
Verdict
Supergrow is strong at capturing ideas by voice and at team features. Postbridge offers the same core (voice, ideas, scheduling, analytics, carousels) for far less, and adds a comments inbox and a trending radar. For an individual professional, the price difference and the localized interface tilt the balance toward Postbridge.
Frequently asked questions
The most common questions from people comparing Postbridge and Supergrow.
How much does Supergrow cost?
The Pro plan costs $39/mo ($31/mo billed annually) for 1 profile. Teams costs $199/mo ($189/mo billed annually) for 5 profiles. Enterprise is custom. Prices checked in November 2026.
What is Supergrow's Content DNA?
It is the voice profile Supergrow builds from your vocabulary, tone, opinions and topics. Postbridge does something equivalent: during onboarding you define your tone and topics, and the AI then generates ideas and posts in your voice.
Supergrow or Postbridge: which is better for carousels?
Both ship a carousel maker. In Supergrow it is part of the Pro plan ($39/mo). In Postbridge it is part of the Advanced plan ($25/mo), which also includes 5 posts per week and premium support.
Does Supergrow have a Chrome extension?
Supergrow's official pages state that it connects through LinkedIn's official API with no extension required; an older listing exists in the Chrome Web Store, but its current status is not disclosed. Postbridge also uses the official API and offers an optional extension to capture impressions.
Does Supergrow have a free trial?
Yes, every Supergrow plan includes a 7-day free trial. Postbridge also offers a 7-day free trial on every plan, cancel anytime.
LinkedIn Report 2026
Real reach and engagement data to calibrate your strategy.
Postbridge plans and pricing
Essential, Professional and Advanced, all with a 7-day free trial.
Try Postbridge free and compare it with Supergrow yourself
7-day free trial, no contract, cancel anytime. Generate your first post in your voice in under 5 minutes.
Supergrow is a trademark of its respective owners. Information about Supergrow was collected from public pages and may change; check the official site before purchasing. Postbridge is not affiliated with Supergrow.