Compare/Syften
Radar vs Syften
Syften is what you buy when F5Bot's free email is not enough filtering. Boolean-ish control, more sources, team routing. Still an alert tool. Radar still writes the reply. Same pairing advice as F5Bot: many serious people run Syften for the ping and something else for the words.
Radar is for
Founders who already get too many qualified alerts.
Syften is for
Teams that need mentions in Slack with filters, not a draft engine.
I still paste every reply myself
I built Radar because Hunt plus a pasted reply on Reddit is how I actually reach people. I run it on ColorHer (photo restoration) and SHIP FM (startup radio). Radar never posts. I copy the draft, open the thread, and paste under my own name. Help-only when pitching would be spam. Founder disclosure when the product belongs in the reply.
I'm selling this because I can see it helping me get seen — and paid. OPs answer. People check the FM. A first customer showed up. I am not going to invent a round number for you.
The tools on this page that auto-post or buy accounts are a different job. I flinch at that, so Radar stops at the draft. I still paste by hand. That is the product.
The loop is public: @robsannazzaro on X.
What they have that we don't
Breadth + filters
Reddit, HN, GitHub, forums, web, and more, with archive and AI qualification on paid plans.
Delivery
Slack, email, RSS, API, webhooks.
What Radar holds onto
The draft step
Syften will not write a 40–130 word founder reply that cites the OP.
Filter vs draft
Syften. Control what hits the channel.
Radar. Control what is worth your username.
Syften for the firehose quality. Radar for the paste.
Price
Commonly cited from about $19.95/month. Confirm on syften.com.
€19/month flat after 10 free copied replies — the same money, but the reply is drafted, not just alerted.
Their product changes. We read public pages on syften.com/ in September 2026 and did not sign up to every dashboard. If something here is stale, that is on us — email and we will fix it.
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