Best Reddit monitoring tools
Updated October 2026
Reddit is one of the few places left where people describe a problem before they know what to call the solution, which makes a Reddit-specific monitoring tool a different purchase from a general social-listening suite. The tools below are the ones built around Reddit first, not Reddit as one source among many.
Quick answer
MarketHQ is the pick for teams that want Reddit alongside a weekly check of six AI engines and an action plan, from $29 a month. F5Bot is the free default for a handful of keywords. Syften covers Reddit, Hacker News and other online communities. Pulse for Reddit and Subreddit Signals rank threads by buying intent, RedReach adds an AI relevance filter and guided replies, and Notifier and RepLyGuy add real-time alerts and drafted replies.
Key points
- MarketHQ covers Reddit on paid plans from Lite at $29 a month and pairs it with news, blogs, forums and other social sources, which most Reddit-only tools do not monitor.
- F5Bot is free for five keywords on Reddit, Hacker News and Lobsters, delivered by email.
- MarketHQ runs weekly AI-answer visibility across six named AI engines on paid plans; among the Reddit-focused tools here, only Pulse for Reddit also scans AI answer engines.
What sources does MarketHQ cover?
Free: Hacker News, GitHub, RSS, Stack Overflow, Dev.to, Lobsters. Paid plans add Reddit, LinkedIn, YouTube, X, Perplexity, Product Hunt, Broader web crawl, Bluesky.
- Grouped Slack daily digest
- Drafted replies from your own strengths
- Gap analysis and action plans
- Weekly AI-answer visibility (paid plans)
- Chat over your own evidence
- API and MCP on every paid plan
- Flat capacity pricing, tiers differ by tracking volume only
- 7-day trial for $0.99 on Lite and Startup
- Free tier with no card and no end date
Method: every tool was checked against its own published pages in October 2026 and included only where the vendor states that it covers Reddit. Prices, free plans and AI-engine coverage per tool are pulled live from our vendor directory rather than typed by hand. Ordering is not a ranking by popularity; nothing here is paid placement, and MarketHQ is our own product.
MarketHQ
Reddit tracked on paid plans from $29 a month alongside news, blogs, forums and other social sources, joined to a weekly check of six AI engines, gap analysis and action plans. Our own product, listed first because the page is ours.
- Best for
- Teams that want Reddit covered as one source inside a broader community and AI-answer picture.
- Pricing
- Free (paid from $29/mo)
- Sources covered
- Hacker News, GitHub, RSS, Stack Overflow, Dev.to, Lobsters, Reddit, LinkedIn, YouTube, X, Perplexity, Product Hunt, Broader web crawl, Bluesky
- AI visibility
- Yes
F5Bot
A minimal keyword-alert bot that emails you when your terms appear on Reddit, Hacker News or Lobsters, running since 2017 with almost no setup.
- Best for
- One or two keywords, read by a human, at zero cost.
- Pricing
- From $0/mo
- Sources covered
- Reddit, Hacker News, Lobsters
- AI visibility
- Unknown
Syften
Real-time keyword alerts for Reddit, Hacker News, forums and other online communities, with AI-based relevance filtering, a JSON API and an MCP endpoint (on its top plan).
- Best for
- Teams that want the widest developer-forum coverage beyond Reddit alone.
- Pricing
- From $29.95/mo
- Sources covered
- Not published
- AI visibility
- Unknown
Pulse
Scans Reddit for high-intent buying conversations, drafts a reply, tracks competitor mentions and scans AI answer engines daily for brand visibility, with a free preview and no card needed.
- Best for
- Founders who want Reddit threads scored by buying intent, not just keyword matches.
- Pricing
- Not published
- Sources covered
- AI visibility
- Yes
Redreach
An AI tool that filters for the most relevant Reddit posts, offers AI-guided replies, tracks brand and competitor mentions and sends alerts by email, Slack, Telegram or webhook.
- Best for
- Teams that want drafted Reddit replies and competitor tracking in one Reddit-only tool.
- Pricing
- Not publicly published
- Sources covered
- AI visibility
- Yes
Subreddit Signals
Monitors chosen Reddit communities, ranks posts by buyer intent and product fit, and helps draft human-reviewed replies.
- Best for
- Teams that want to watch specific subreddits rather than a brand keyword across all of Reddit.
- Pricing
- From $29/mo
- Sources covered
- AI visibility
- Unknown
Notifier
Keyword and brand-mention monitoring across Reddit, Hacker News, LinkedIn and other social and news sources, with AI filtering to cut irrelevant alerts and the option to watch entire subreddits.
- Best for
- Teams that want Reddit and Hacker News alerts filtered by AI before they reach an inbox.
- Pricing
- From $49/mo
- Sources covered
- Reddit, Instagram, YouTube, Google Search, Hacker News, News sites & blogs, LinkedIn, Facebook, TikTok, Quora
- AI visibility
- Unknown
ReplyGuy
Uses AI to find relevant mentions and conversations about a product on Reddit and Twitter/X, then drafts or posts replies rather than just reporting the mention (its Analyst plan has no auto-replies).
- Best for
- Small teams that want replies drafted automatically on Reddit and X together.
- Pricing
- From $39/mo
- Sources covered
- Reddit, Twitter/X
- AI visibility
- Unknown
Octolens
AI social listening across Reddit, X, LinkedIn and 13-plus other platforms, delivered through an API, webhooks and an MCP server, with the API on all plans.
- Best for
- Developer-tool teams that want Reddit mentions piped into their own workflow via API.
- Pricing
- From $159/mo
- Sources covered
- Reddit, Bluesky, DEV, LinkedIn, X/Twitter, TikTok, Hacker News, YouTube, GitHub, Stack Overflow, Podcasts, Newsletters, News, Web, Reviews (Trustpilot, App Store, Google Play)
- AI visibility
- Unknown
What does a Reddit monitoring tool actually track?
Keyword matches across chosen subreddits, usually with a scoring or filtering layer on top to separate a real buying conversation from noise.
F5Bot is the simplest version of the idea: a keyword matches, an email arrives, nothing else. Syften widens the net to Reddit plus Hacker News, forums and other online communities. Pulse for Reddit, RedReach and Subreddit Signals go a step further, scoring threads by buying intent and drafting a reply rather than just flagging a match.
MarketHQ covers Reddit on paid plans as one source among news, blogs, forums and other social sources, rather than being a Reddit-only tool, and adds a weekly AI-answer check across six engines.
What is the best free way to monitor Reddit?
F5Bot, for five keywords across Reddit, Hacker News and Lobsters, at no cost.
F5Bot has run since 2017 and does one thing: email you when a keyword matches. For a founder watching their own product name and one or two competitors, that is often enough, and the price is zero.
MarketHQ's paid plans start at $29 a month and include Reddit. The free plan covers news, blogs, forums and a taste of Bluesky instead. F5Bot gives free alerts on Reddit. MarketHQ's free plan covers the rest. Together they are a reasonable zero-cost starting combination.
Which Reddit tools draft replies automatically?
Pulse for Reddit, RedReach, Subreddit Signals and RepLyGuy all list AI-drafted, AI-guided or AI-posted replies.
These four are built around the same idea: finding a Reddit thread where someone is actively deciding between products, and helping a human reply fast rather than just logging the mention. Subreddit Signals states its drafts are human-reviewed with no auto-posting, Pulse for Reddit drafts a spam-safe reply and tracks karma and subreddit rules, and RepLyGuy drafts or posts replies depending on the plan.
F5Bot, Syften, Notifier and Octolens list alerts, filtering or API delivery rather than reply drafting. MarketHQ drafts replies from your own strengths on paid plans, across Reddit and its other sources, rather than Reddit specifically.
- Free keyword alerts, no reply drafting: F5Bot.
- Reply drafting built specifically for Reddit: Pulse for Reddit, RedReach, Subreddit Signals, RepLyGuy.
- Reddit as one source inside a broader community and AI-answer tool: MarketHQ, Syften, Notifier, Octolens.
What does Reddit monitoring cost?
Free for five keywords with F5Bot; the paid tools with published prices start from $29 to $159 a month.
F5Bot has a free tier capped at five keywords, with paid tiers from Silver at $9.99 a month. Among the rest, Subreddit Signals Starter is $29 a month, Syften Entry is $29.95, RepLyGuy Analyst is $39, Notifier Solo is $49 and Octolens Pro is $159 billed annually. Pulse for Reddit and RedReach do not render a price in what we read. MarketHQ's Reddit coverage starts on Lite at $29 a month.
The current entry price and free-plan status for every tool above is shown next to that entry, pulled from the vendor's own page rather than repeated here.
How should you choose a Reddit monitoring tool?
Decide whether you need alerts, a ranked list of threads to answer, or Reddit as one source inside a wider picture.
If you only need to know when a keyword appears, an alert tool is enough: F5Bot is free for five keywords, and Syften and Notifier add filtering and more sources. If you want a ranked list of threads worth answering, the intent-ranking tools fit: Pulse for Reddit and Subreddit Signals rank threads by buying intent, and RedReach filters for relevance.
If Reddit is one conversation among several, a wider tool fits better. MarketHQ covers Reddit on paid plans next to news, blogs and forums, and Octolens lists Reddit among 15-plus platforms. Before paying, check whether a free trial exists: Subreddit Signals, Notifier and Octolens each list one, and Pulse for Reddit offers a free preview.
Should you watch specific subreddits or your brand name everywhere?
Subreddit Signals is built for the first approach; F5Bot, Syften and MarketHQ are built for the second, and Notifier can do either.
Watching specific subreddits makes sense when your buyers gather in a known handful of communities and the useful signal is any thread in those places, not just ones naming your product by name. Subreddit Signals is built around that shape, ranking posts in chosen communities by buyer intent regardless of whether your brand is mentioned at all.
Watching a keyword everywhere makes more sense when you don't know in advance which subreddit a mention will land in, which is the more common case for a brand name or a competitor's name. F5Bot, Syften and MarketHQ all work this way, matching a term across Reddit rather than a chosen list of communities. Notifier also lists the option to monitor entire subreddits.
How would a solo founder watch Reddit for buying signals?
By starting free with F5Bot and upgrading to a reply-drafting tool only once there are threads worth replying to every week. The scenario below is illustrative.
Illustrative: a solo founder's product gets mentioned on Reddit a few times a month, mostly in threads where someone is asking for a recommendation. F5Bot's free tier catches the keyword match at no cost, but reading and replying to each one by hand takes time they don't have.
Once that becomes the bottleneck, Pulse for Reddit ranks threads by buying intent and drafts a reply, and RedReach offers AI-guided replies, cutting the time from notification to reply. If forums and news also matter, and the question of whether an AI assistant recommends the product comes up, MarketHQ covers Reddit alongside that wider picture in one paid plan instead of three separate tools.
The order matters more than the final list. Buying a reply-drafting tool before there is enough Reddit volume to justify it means paying for a feature nobody uses yet. Starting with F5Bot and upgrading only when a specific bottleneck shows up keeps the spend matched to an observed need rather than a guess about future volume.
Frequently asked questions
What is the best free Reddit monitoring tool?
Start with MarketHQ's free plan for news, blogs, forums and a taste of Bluesky. Reddit itself sits on paid plans from Lite at $29 a month. For free Reddit alerts, F5Bot covers five keywords across Reddit, Hacker News and Lobsters by email.
Which Reddit monitoring tool is best overall?
MarketHQ is the pick if Reddit needs to sit alongside news, blogs, forums and AI-answer tracking. F5Bot is the simplest free option. Pulse for Reddit, RedReach and Subreddit Signals fit if replies to buying-intent threads matter most.
Can any of these tools draft replies to Reddit posts?
Pulse for Reddit, RedReach, Subreddit Signals and RepLyGuy all list AI-drafted, AI-guided or AI-posted replies for Reddit threads. MarketHQ drafts replies from your own strengths on paid plans across Reddit and its other sources.
Do any Reddit monitoring tools also track AI-answer visibility?
MarketHQ runs a weekly check against ChatGPT, Claude, Gemini, Perplexity, Grok and DeepSeek on every paid plan. Pulse for Reddit also scans AI answer engines for brand visibility alongside its Reddit monitoring. The rest of the Reddit tools here list no such feature.
Is it against Reddit's rules to monitor and reply to posts about your product?
Check Reddit's own rules and each subreddit's self-promotion rules before replying, and disclose any affiliation. Subreddit Signals states its drafts are human-reviewed with no auto-posting, and Pulse for Reddit lists tracking of subreddit rules.
How was this list put together?
Every tool was checked on its own site in October 2026 and included only where the vendor states that it covers Reddit. Prices shown per tool come from our vendor directory, not a hand-typed figure. No placement was paid for; MarketHQ is our own product.
Related
- All category guides — every list we verified the same way
- Best X (Twitter) monitoring tools — the companion list for X-specific tools
- MarketHQ vs F5Bot — the free-tier head-to-head
- MarketHQ vs Syften — a community-alert specialist compared head to head
- F5Bot alternatives — where to go once F5Bot's free tier runs out
- Pricing — what the four MarketHQ tiers cost
Sources
- F5Bot home page and tiers: https://f5bot.com/ (verified 2026-10-08)
- Syften pricing: https://syften.com/pricing (verified 2026-10-08)
- Pulse for Reddit one-liner and sources: https://usepulse.ai (verified 2026-10-08)
- RedReach one-liner and sources: https://redreach.ai (verified 2026-10-08)
- Subreddit Signals one-liner and sources: https://subredditsignals.com (verified 2026-10-08)
- Notifier one-liner and sources: https://notifier.so (verified 2026-10-08)
- RepLyGuy one-liner and sources: https://replyguy.com (verified 2026-10-08)
- Octolens one-liner and sources: https://octolens.com (verified 2026-10-08)