Head to head
F5Bot vs KWatch.io
F5Bot is a keyword alerts tool: Free, simple and reliable. Enter a keyword, get an email when it shows up on Reddit or Hacker News. KWatch.io is a keyword alerts tool: Real-time keyword alerts across LinkedIn, X, Facebook, YouTube, Reddit and Hacker News, with AI sentiment and email, Slack or webhook delivery.
| F5Bot | KWatch.io | |
|---|---|---|
| Price | Free | From $19/mo; Slack and webhooks from $79 |
| What it watches | Reddit, Hacker News, Lobsters | Reddit, X, LinkedIn, Facebook, YouTube, Hacker News |
| AI buyer-intent scoring | No, keyword matching | No, keyword matching |
| Category | Keyword alerts | Keyword alerts |
Details read from f5bot.com and kwatch.io, last checked October 2026. Check the vendor sites before you subscribe.
Choose F5Bot if
Free, simple and reliable. Enter a keyword, get an email when it shows up on Reddit or Hacker News.
Watch out: It matches words, not meaning. Common category words flood your inbox, and a buyer who describes the problem without your keyword is never caught.
Choose KWatch.io if
Real-time keyword alerts across LinkedIn, X, Facebook, YouTube, Reddit and Hacker News, with AI sentiment and email, Slack or webhook delivery.
Watch out: Its AI reads sentiment, not buying intent, so you still sort buyers from noise yourself, and X keywords are limited on the cheaper plans.
The short version
Perfect for brand-name mentions. For finding buyers in busy subreddits, the noise becomes the job. A cheap way to watch many platforms for a word. For buyers rather than mentions, intent scoring does the sorting for you.
Or skip both
If what you want is the posts where someone is asking to buy, Leadhoot scores every new post on Reddit, X and Threads 0–100 for buyer intent and sends only the high scorers to email, or Slack on Agency, within a minute.