Prices checked on September 23, 2026.
PhantomBuster is an automation platform. You turn on scripts, called phantoms, that pull data from LinkedIn, Instagram, X or Google Maps and return a file. One of them extracts the people who liked or commented on a LinkedIn post.
That's exactly the function Kast has built in, but the two products aren't aimed at the same people.
PhantomBuster takes setup: pick the phantom, give it a LinkedIn session, set the frequency, chain a second phantom to enrich the profiles, plug in a third to export. It's powerful, and it assumes you understand what you're doing.
Kast does one thing, with no settings: you paste a post's URL, you get the list of people who engaged, with their job title and company, you filter, you export. No session to paste, no script to schedule.
The tradeoff: you can't extract the members of a group, the attendees of an event or the results of a Sales Navigator search. PhantomBuster can.
| PhantomBuster | Kast | |
|---|---|---|
| Type | Automation platform, many scripts | Content and lead tool |
| Setup | Session to provide, scripts to configure | Paste a post's URL |
| Networks covered | LinkedIn, Instagram, X, Google Maps, others | LinkedIn and X |
| Extracting a post's engagement | Yes, via a phantom | Yes, built in |
| Extracting searches and groups | Yes | No |
| Email enrichment | Via a dedicated phantom | No, that's your sending tool's job |
| Post writing | No | First draft calibrated to your voice |
| Score before publishing | No | Four criteria |
| Post scheduling | No | LinkedIn and X |
| Sending messages | Via phantoms | No, never |
A founder who posts twice a week doesn't need forty scripts. They need to write, publish, and know who read them. Everything else adds setup and risk.
We don't ask you to paste a LinkedIn session, we don't run scripts in the background on your account, and we don't send any messages.
PhantomBuster, no question.
Kast, in a few minutes and with no setup.
The two overlap. What decides it is how much technical setup and account risk you can live with.
Choose PhantomBuster if you want to build your own data pipelines and setup doesn't scare you.
Choose Kast if you want the same list, from your posts, without configuring anything.
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