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Kasspian
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Kasspian vs Syften

Syften does one job. Kasspian does a different one.

An AI-filtered keyword monitor. You give it phrases to watch and it alerts you by email, Slack, RSS, webhook or API whenever a matching conversation appears.

Every figure below was read from Syften’s own site on 18 August 2026. Check it before you buy, prices move.

What Syften is, from their own page

Pricing
Entry $29.95/mo (3 community filters, 100 results a day), Standard $49.95/mo (20 filters, 200 a day, AI filtering, Slack, API), PRO $119.95/mo (100 filters, 500 a day, unlimited archive, webhooks).
Free trial
14 days, no credit card.
Platforms
Reddit, X, Hacker News, Indie Hackers, GitHub, Product Hunt, the Stack Exchange family, Dev.to, Lobste.rs, Slack communities, YouTube, podcasts, Bluesky, Mastodon, newsletters, forums, and the public web.
What you give it
Keywords and filters. It does not decide which communities matter for your business.

The actual difference

Syften

Syften starts the moment you know what to listen for. It is a very good ear: the platform coverage is wider than anything else in this space, and if your brand or a competitor's name is being said anywhere, Syften is how you hear about it within minutes.

Kasspian

Kasspian starts one step earlier, when you do not yet know which rooms are worth listening to. You describe the business, and it names the specific communities, marketplaces and directories your buyers are in, why they are there, what to say, and whether posting is allowed or whether commenting is the only open door. It runs when you ask, not continuously.

Use Syften, not Kasspian, when

  • You want to know within minutes when your product, your competitor, or a phrase you care about gets mentioned. Kasspian has no alerting at all.
  • You are monitoring far beyond Reddit: GitHub issues, Stack Exchange, podcasts, newsletters. Syften's coverage there is the widest in this category.
  • You already know your communities and the job is keeping up with them, not choosing them.

Use Kasspian when

  • You do not yet know where to start, or you are not sure your buyers are on Reddit at all.
  • You have been posting and getting removed. Every room Kasspian names carries a read on whether posting is allowed or whether you should comment instead.
  • You want the read for free before paying anything. Kasspian's free tier is $0 with 5 web-sourced reads.

Describe your business and read the answer before you pay anything. Free tier, no card, and the rooms come with whether you are allowed to post in them.

Find my first customersOr see the rooms for your business type

Questions

Is Kasspian a Syften alternative?
Only partly, and it is worth being straight about that. Syften is a real-time keyword monitor across 15+ platforms. Kasspian does not monitor anything continuously and has no alerts. It answers which rooms to be in and what to say there. Some people need both; if you only need alerting, Syften is the tool.
How much does Syften cost?
Syften's own pricing page listed Entry at $29.95/mo, Standard at $49.95/mo and PRO at $119.95/mo when this page was last checked, each with a 14-day no-card trial.
How much does Kasspian cost?
Free is $0 and includes 5 reads with real web sources plus unlimited unsourced ones. Pro is $19/mo. Sourced reads can also be bought one at a time from $2 each in a bundle.
Where these figures came from

Syften is their trademark, not ours. Nothing here is endorsed by them.

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