Overview

KWatch.io is designed to surface sales signals, customer feedback, competitor activity, market intelligence, support issues, and campaign impact. It combines keyword monitoring across six sources with alerts for new comments in tracked Reddit and Hacker News conversations, making it useful when a team needs to follow both emerging mentions and particular threads.

The maker says monitoring refreshes per second; notifications usually arrive within seconds, though temporary congestion can delay them by up to a minute. That is timely enough for active monitoring, but not a promise of immediate delivery. Included and excluded keywords and language filters can narrow alerts and reduce irrelevant matches.

Key features

Source coverage and conversation tracking

Keyword monitoring covers Reddit, X, Hacker News, LinkedIn, Facebook, and YouTube. Conversation tracking is limited to Reddit and Hacker News posts and comments, with an alert when someone comments in a tracked conversation. This distinction matters: KWatch.io can watch keywords across several networks, but it does not provide conversation tracking across all of them.

There are further source-specific limits. LinkedIn and Facebook comments are not monitored, Facebook groups must be public, and YouTube keyword alerts examine video titles and descriptions rather than audio. Instagram and TikTok are not supported. Teams whose monitoring depends on those sources or on comment-level coverage should look elsewhere.

Analysis, delivery, and integrations

AI categorizes sentiment around detected keywords as positive, negative, or neutral. That gives teams a quick directional signal, though the stated output is a three-way category rather than a deeper account of why a conversation has that tone.

Alerts can arrive by email, Slack notification, or API webhook. Webhooks send each result as a JSON-encoded HTTP POST, so they can feed systems that accept custom POST requests. The hosted MCP server works with compatible clients using a KWatch API key; the maker names Claude, Claude Code, Cursor, and VS Code. Webhook and MCP traffic use TLS encryption, and MCP access can be revoked by revoking the API key.

Pricing

KWatch.io has a free plan and paid plans from 19.00 USD per month. The key pricing distinction is how many alerts and conversations each source can accommodate, not simply the number of users.

Plan	Price	What it includes
Free	Free, billed monthly	2 Reddit keyword alerts, 2 Hacker News keyword alerts, no tracked conversations, and basic support.
Essential	19.00 USD per month	20 keyword alerts each on Reddit and Hacker News; 2 each on X and YouTube; 1 each on Facebook and LinkedIn; 2 tracked conversations each on Reddit and Hacker News; AI analysis, filtering, and basic support.
Business	79.00 USD per month	100 keyword alerts each on Reddit and Hacker News; 10 each on X and YouTube; 5 each on Facebook and LinkedIn; 10 tracked conversations each on Reddit and Hacker News; API, webhooks, Slack, MCP, bulk import, team management, and basic support.
Enterprise	199.00 USD per month	500 keyword alerts each on Reddit and Hacker News; 50 each on X and YouTube; 25 each on Facebook and LinkedIn; 50 tracked conversations each on Reddit and Hacker News; API, webhooks, Slack, MCP, bulk import, team management, and advanced support.
Agency (Multi-Client)	Custom pricing	Multi-client management, custom keyword-alert and conversation limits, API, webhooks, Slack, and MCP.

Free is a narrow way to try keyword monitoring on Reddit and Hacker News, but its two-alert caps and lack of tracked conversations make it a poor fit for ongoing thread monitoring. Essential is the practical starting point for an individual or small team that needs modest coverage across all six sources; it does not include the API, webhooks, Slack, MCP, bulk import, or team management listed for higher tiers. Business is the first listed plan with those integrations and team tools, while Enterprise raises the quotas substantially and adds advanced support. The Agency plan is aimed at multi-client work, with custom limits and custom pricing.

Platforms

KWatch.io is available on web and through an API. The API, webhooks, Slack, MCP, bulk import, and team management are included on Business and Enterprise; the Agency plan includes API, webhooks, Slack, and MCP.

Who it's for

KWatch.io is a good fit for teams that need keyword alerts plus follow-up on Reddit or Hacker News threads, especially when sentiment labels and routing alerts into Slack or internal systems are useful. Its use cases span sales signal detection, customer feedback, competitor monitoring, market intelligence, customer support, and campaign impact measurement.

It is less suited to teams that require Instagram or TikTok monitoring, complete comment coverage on LinkedIn or Facebook, or YouTube audio search. The source-by-source quotas also make it important to check whether the chosen plan can support the number of topics and conversations a team intends to track.

Pros and cons

Pros

Reddit and Hacker News conversation alerts: Follow new comments on tracked threads, not just keyword matches.
Multiple alert routes: Email, Slack, and JSON webhooks support both direct notifications and custom integrations, with Slack and webhooks included from Business.
Low paid entry point: Essential starts at 19.00 USD per month and includes limited coverage across all six monitored sources.
Useful filtering and sentiment signal: Include/exclude terms and language filters refine alerts, while positive, negative, or neutral labels add a quick read on keyword sentiment.

Cons

Free plan has no conversation tracking: Its two Reddit and two Hacker News keyword alerts are restrictive for anything beyond a small trial of the workflow.
Coverage has notable gaps: Instagram and TikTok are unsupported, LinkedIn and Facebook comments are excluded, and YouTube searches titles and descriptions rather than audio.
Quotas vary sharply by source and tier: Essential allows just one keyword alert each for Facebook and LinkedIn and two each for X and YouTube.
Alert timing can vary: Notifications usually arrive within seconds, but congestion can extend delivery to a minute.

Alternatives

Consider Brand24 if you want a paid service with a free trial and broad platform availability; its Individual plan is 249.00 USD per month, with 3 keywords, 2K mentions per month, 1 user, and updates every 12 hours. Choose KWatch.io instead when its lower Essential price and Reddit or Hacker News conversation tracking matter more.

dig is worth considering for a freemium option with 10 credits per month on Free, or 50 credits per month plus influencer vetting, crisis detection, and trend discovery on Pro at 25.00 USD per month. Its credit-based limits differ from KWatch.io's per-source alert quotas.

Social Searcher may suit someone who wants a web-based free option with no registration or login, 100 real-time searches per day, one monitoring slot, and 500 saved posts per month. Its free plan is more search-oriented than KWatch.io's small set of keyword alerts.

Awshar AI is a paid alternative with a free trial, while Mentionlytics is a paid option with a free trial and a Basic plan at 49.00 USD per month. Awario is another paid, trial-based alternative, with a Starter plan at 29.00 USD per month billed annually. BrandMentions offers a paid plan with a free trial and a Starter plan at 99.00 USD per month billed annually. OpenMagpie is a free self-hosted option where the user provides the hardware and model.

For more options, browse AI Social Listening Tools and Social Media Listening Software.

Verdict

KWatch.io is a sensible choice for teams that want affordable keyword monitoring across several social sources and, in particular, alerts on Reddit and Hacker News conversations. Choose Essential for modest coverage and Business when integrations and team management are needed. Look elsewhere if your work depends on Instagram, TikTok, comment coverage on LinkedIn or Facebook, YouTube audio, or quotas beyond the plan limits.

	KWatch.io	Zignal Labs
Free plan	Yes
Paid from	$19/mo
Platforms	api, Web	Android, api, iOS, Web
Free plan	Yes
Paid from	$19/mo
Sentiment analysis	Yes
Source coverage	Reddit, Hacker News, X, LinkedIn, Facebook, YouTube	Publicly available and licensed web content; text, imagery, and video
API access	Yes	Yes

KWatch.io vs Zignal Labs

KWatch.io

Zignal Labs