Comparison

Most LinkedIn tools are built for marketers. PostWriter is built for engineers.

An honest look at how PostWriter compares to Taplio, Supergrow, and AuthoredUp. Each tool is good at something — here's how to pick the right one for you.

FeaturePostWriterTaplioSupergrowAuthoredUp
Price for usable AI writing
$19.99/mo
$69/mo

$39 Starter has zero AI credits

$19/mo

No AI writing

AI post generation
Posts grounded in live research (GitHub, HN, Reddit)

Viral post library, not technical sources

Personalization from your real career experiences

Voice tuning only

Built for a technical audience (role, tech stack)
Carousel creation
AI images & infographics per post

Ultra plan

Post formatting & preview editor

Best in class

Lead database & outreach automation

450M+ contacts, auto-DMs

No LinkedIn-automation account risk

Automation triggered LinkedIn restrictions in 2025

Pricing and features as of July 2026, based on each vendor's public pricing pages. Check their sites for current details.

Choose Taplio if…

You're in sales or marketing and want LinkedIn as an outbound channel — its lead database and CRM features are real. Expect $69/mo for usable AI.

Choose AuthoredUp if…

You already write every post yourself and just want the best formatting and preview editor. No AI, no research — by design.

Choose PostWriter if…

You're an engineer, EM, or CTO who wants posts grounded in your real experience and real technical sources — at a third of Taplio's usable price.

Try the engineer's option free for 7 days.

No credit card required.