F5BotvsKWatch.io

Comparison · checked 20 October 2026

F5Bot vs KWatch.io

These are the two tools people reach for when they want an email when their name comes up and nothing more. F5Bot is cheaper and older and covers three sources; KWatch covers six and is faster. The decision turns almost entirely on whether you need anything beyond Reddit and Hacker News.

F5Bot — Free, then $9.99/moKWatch.io — Free, then $19/mo
[01] SIDE BY SIDE/ THE TABLE

F5Bot against KWatch.io

Every figure read from each vendor's own materials on 20 October 2026. A tick marks the column with the advantage on that row; plenty of rows have neither, which is usually the honest answer. Pricing in this category moves — three of the ten tools we track repriced during 2026 — so confirm anything you are about to sign for.
 F5BotKWatch.io
Free tier5 keywords, 20 alerts/day, 2h delay2 Reddit + 2 Hacker News alerts
Entry paid plan$9.99/mo — 20 keywords$19/mo — per-platform allowances
SourcesReddit, Hacker News, LobstersReddit, HN, X, YouTube, Facebook, LinkedIn
Speed on the free tierWithin 2 hoursSeconds to a minute
Speed on paid5 min at $9.99, instant from $49.99Seconds to a minute at every tier
Keyword countingPooled across sourcesPer platform
Sentiment or AIKeep-or-drop filtering, Gold ($49.99) and upAI sentiment from $19
Slack or Discord deliveryGold ($49.99) and upBusiness ($79) and up
REST API and webhooksPlatinum, $214.99/moBusiness, $79/mo
MCP serverNot offeredBusiness, $79/mo
Annual billingYes, one month freeMonthly only
[02] WHERE F5BOT WINS/ HONESTLY

Nothing competes on price

A permanent free tier with five keywords, and $9.99 for twenty. KWatch’s free tier is two alerts each on two platforms, and its paid entry is nearly double.

Nine years of running without drama

F5Bot has operated since 2017 and reports delivering over 430,000 alerts a day. In a category where small tools appear and vanish, that record is worth something real.

Keywords are pooled, not per platform

Twenty keywords at $9.99 means twenty terms. KWatch’s $19 plan is 20 Reddit and 20 Hacker News but only 1 LinkedIn and 1 Facebook, so the same watch list can cost a tier more.
[03] WHERE KWATCH.IO WINS/ HONESTLY

Twice the sources, including LinkedIn and X

F5Bot is Reddit, Hacker News and Lobsters and always has been. KWatch adds X, YouTube, Facebook and LinkedIn — with real caveats, including that it does not read LinkedIn or Facebook comments.

Seconds rather than hours

KWatch refreshes within seconds at every tier, including free. F5Bot’s free tier delivers within two hours and needs $49.99 for instant. On a fast-moving Hacker News thread, two hours is the difference between a reply and a post-mortem.

AI sentiment from the entry plan

On the $19 tier. F5Bot’s filtering is a keep-or-drop rule that starts at $49.99 and meters token usage above $10 a month.
[04] HOW TO CHOOSE/ SHORTCUTS

You only care about Reddit and Hacker News

F5Bot

Free for five keywords, $9.99 for twenty, and it has done exactly this job since 2017. Paying more for sources you will not use is the most common mistake here.

You need LinkedIn, X or YouTube

KWatch.io

F5Bot does not cover them at any price. Read the per-platform allowances first: the $19 plan gives you one LinkedIn alert.

Minutes matter

KWatch.io

Seconds at every tier including free, against two hours on F5Bot’s free plan and $49.99 for instant.

You want an API

KWatch.io, at $79

F5Bot puts its API on the $214.99 Platinum tier, which is the most surprising gate in either product.

[05] A THIRD OPTION/ OURS, DISCLOSED

Where FishOut changes the answer — and where it does not

Both of these end at the alert. There is no inbox, no assignment, no record of what a colleague already answered, and nothing ranking a passing joke below someone actively shopping — which is fine for one person and becomes a spreadsheet for three. FishOut’s free plan covers the same two main sources, plus Bluesky, GitHub and Google News, with a real inbox, delivery history, the API and an MCP server; $19 adds YouTube, Medium, LinkedIn, TikTok and X, with keywords counted once rather than per platform. If a mailbox is genuinely all you want, F5Bot at $9.99 is hard to argue with.
Start freeFishOut vs F5Bot
[06] SEE IT ON YOUR KEYWORDS/ FREE PLAN

What you get instead of F5Bot or KWatch.io

Where F5Bot or KWatch.io stops at the match, the inbox keeps going: why it matters, whether to answer, and the answer drafted in your voice.
Leads· Best first14
84
GitHubopen-desk/issues1d

Looking for an alternative now that Bramblemail dropped its API

Reply, carefullyAsking for recommendationsHas a problem
90
r/smallbusinesstwofoldbakery7h

Customers email three different addresses and we keep missing orders

Reply nowHas a problemAsking for recommendations
95
r/SaaSpatchwork_pm40m

What do you use to find people asking for a tool like yours?

Reply nowAsking for recommendations
GitHubopen-desk/issues1d

Looking for an alternative now that Bramblemail dropped its API

Our triage bot read Bramblemail over its API. That is gone as of this month. Anything with a stable API we can migrate the bot to?

Relevance

84
Competitor namedSwitching nowTechnical buyer

Labels · Reply call

Reply, carefullyAsking for recommendationsHas a problem

Stick to the API question; link docs, not a landing page

Draft reply

If the bot only needs to read and label threads, the AcmeMail REST API covers that and is on every plan — I work there. Happy to point at the two endpoints you would need.

  • Says who you are
  • Answers the API question
  • No claims you cannot back up
Copy and open threadFishOut never posts
Start freeSee every plan

Questions

Sources

Product names and logos belong to their owners and are used only to identify the products compared. No endorsement is implied.

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