Reddit Alerts: Track Keywords, Mentions, and Communities

Among Reddit alert tools, start with F5Bot for most low-cost needs. Choose Syften when precise query logic matters more than analytics, Sprinklr when documented Firehose access and enterprise governance are required, and a broader listening suite when Reddit is only one of several sources. BrandJet, which publishes this comparison, is relevant when the signal-to-lead workflow matters, but its public documentation leaves Reddit coverage details unresolved, so test it in the same pilot.

“Reddit alerts” can mean four different jobs:

1. Native community activity notifications for selected communities and posts you follow.
2. Personal u/ mentions when someone explicitly tags your username or replies to you.
3. Cross-Reddit keyword monitoring for arbitrary brand names, competitors, phrases, and topics.
4. Commercial buying-signal detection that applies rules or vendor interpretation to possible purchase, switching, support, or reputation signals.

Reddit’s native community and account settings handle the first two jobs. They do not create a general rule that watches public Reddit for any keyword you choose. Reddit’s notification documentation covers account and community activity, while Reddit Pro Trends is the separate native product for keyword and conversation discovery.

Treat every “buying intent” label as a rule or model output until a person reviews the public conversation.

Table of Contents

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Quick picks

• Native account and community activity: Reddit notifications
• Free native keyword discovery: Reddit Pro Trends
• Free or low-cost alerts: F5Bot
• Budget Reddit-only rules: RedditAlert
• Specialist query precision: Syften
• AI-first B2B monitoring: Octolens
• Lower-cost cross-platform listening: Awario
• Analytics and reporting: Brand24
• Broad media monitoring: Mention
• Existing Hootsuite workflow: Hootsuite
• Enterprise Reddit listening: Sprinklr
• Signal-to-lead workflow: BrandJet, with the evidence limits stated below

Methodology

This comparison includes only products whose current status and Reddit capabilities were supported by first-party documentation checked on July 14, 2026. The review considers posts versus comments, public-content limits, keyword and Boolean controls, subreddit and author filters, exclusions, language and location support, alert cadence, delivery channels, sentiment or summaries, history, team workflow, export or API access, public pricing, limits, and the largest practical blind spot.

A product page saying “all of Reddit” does not prove complete coverage, complete history, or guaranteed latency. Official Firehose access, approved APIs, commercial agreements, and other compliant discovery methods are different. Reddit can control commercial use, availability, retention, deletion compliance, and access conditions under its Data API Terms.

Reddit alert tools compared

Option	Documented Reddit coverage and controls	Alerts and workflow	Public price and limits	Best fit and largest blind spot
Reddit native notifications	Replies, explicit username mentions, community activity, and followed-post comments. Not arbitrary keyword monitoring	Inbox, push, and email settings. Personal workflow only	Free with a Reddit account	Best for your own Reddit activity. No cross-Reddit keyword rule. Notification help
Reddit Pro Trends	Eligible public, safe-for-work, English posts and comments. Excludes private, banned, quarantined, NSFW, sensitive-topic, chat, private-message, modmail, and deleted content. Standard and Smart keywords, related terms, communities, and summaries	In-product research and documented weekly keyword-summary emails. Download and external publication restrictions apply	Free, with no currently documented tracked-keyword cap	Best free native discovery. Not an immediate Slack or webhook alert queue. Trends help
F5Bot	Posts and comments, including titles, URLs, and comment bodies. Paid include and exclude logic, subreddit URL, author, and post-only or comment-only filters	Email. Gold adds RSS, JSON, Slack, and Discord. Platinum adds API and webhooks. Free can take up to 2 hours; Silver lists within 5 minutes	Free personal plan: 5 keywords, 10 hits per keyword daily, 20 daily alerts. Silver: $9.99 monthly or $109 yearly. Gold: $79.99 monthly or $879 yearly. Platinum: $214.99 monthly	Best free or low-cost alerting. Limited analytics and team workflow. Plans
RedditAlert	Posts and comments. Nested Boolean, regex, AI prompts, and monitored-subreddit rules	Email and shared dashboard. Vendor reports under 30 seconds. A vendor article mentions a paid REST API, but pricing does not clearly list it. Slack was described as planned	Free: 2 alerts, 2 monitored subreddits, 25 emails monthly. Personal: $19 monthly, 10 alerts, 10 subreddits, 500 emails	Best budget Reddit-only rules. History and non-email delivery are less clearly documented. Pricing
Syften	Posts and comments. Exact phrases, AND, NOT, subreddit or site scope, content type, author, reply target, language, and AI acceptance filters	Email, Slack, RSS, API, and webhooks by plan. Vendor target is under 1 minute	Entry: $29.95 monthly, 3 filters, 100 daily results, 7-day archive. Standard: $49.95, 20 filters, 200 results, 1-month archive. Pro: $119.95, 100 filters, 500 results, unlimited archive	Best specialist precision. Lower plans cap results and history. Reddit features and plan details
Octolens	Posts and comments. Negative keywords, AND/OR, specific subreddit and author controls, AI relevance, sentiment, and intent labels	Slack, email, webhooks, API, MCP, summaries, CSV export, and unlimited seats. Pro refreshes hourly; Scale lists real-time refresh	Pro: $199 month to month or $159 monthly annually, 15,000 mentions, 10 keywords, 2-year history. Extra keyword $10; extra mention $0.013. Scale: $599 month to month or $499 monthly when billed annually, 50,000 mentions, 40 keywords	Best AI-first B2B option. High entry price and no public proof of complete coverage. Pricing
Awario	Public Reddit posts are documented. Comment coverage was not confirmed. Boolean, source, language, time, and sentiment filters. No Reddit location filtering because Reddit does not provide user-location data	Email, Slack, sentiment, dashboards, reports, configurable recipients, and Leads. Vendor uses real-time language without a precise Reddit guarantee	Starter: $49 monthly or $29 monthly annually, 3 topics, 30,000 new mentions monthly, 5,000 stored mentions per topic, 1 user	Best lower-cost cross-platform suite. Comment coverage remains unclear. Reddit monitoring
Brand24	Public posts and comments. Required and excluded keywords, Boolean, source, sentiment, author or domain, tags, language, and geolocation filters. Reddit location data may be absent	Email, push, Slack, Teams, sentiment, AI analysis, roles, tags, storm alerts, reports, Excel, PDF, PowerPoint, and optional API	Individual: $249 monthly or $199 monthly annually, 3 keywords, 2,000 mentions, 1 user, 12-hour updates, 1-month retention. Team starts at $349 monthly or $299 annually, hourly updates, 12-month retention. API add-on: $99	Best for analytics and reporting. Expensive entry and slow Individual cadence. Pricing
Mention	Public subreddit posts and comments. Private communities excluded. Boolean, language, source, country, and URL exclusions. Specific-subreddit targeting is not supported	Email, desktop, SMS, Slack, Zapier, RSS, API, sentiment, summaries, spike alerts, assignments, and export depending on plan and add-ons	Company starts at $599 monthly on an annual contract. API and history are add-ons. Plan documentation	Best broad media monitoring when subreddit targeting is unnecessary. High and less transparent entry price. Source coverage
Hootsuite	The $5.99 monthly Synaptive app provides subreddit streams and multi-keyword searches. The separate Lumen workflow documents posts and comments and broader listening analysis	In-dashboard streams or Lumen search, sentiment, summaries, peaks, comparisons, reporting, assignments, and routing by plan. Exact Reddit latency was not documented	Public Hootsuite plans start near $99 monthly. Standard lists 7-day social search; Professional lists 30-day search. Synaptive requires Hootsuite	Best for existing Hootsuite users. The simple app and larger Lumen product are easy to conflate. App listing and Professional plan
Sprinklr	Public posts and comments through documented Official Firehose API access. Specific subreddits, exact authors, keywords, language, sentiment, emotions, topics, and relationships. NSFW and 18+ exclusions apply; moderated content may be delayed	Enterprise alerts, dashboards, assignments, replies, reporting, and backfill. Ingestion is documented around 1 to 3 minutes, with engagement refresh around 3 to 8 minutes	Custom proposal and demo. Historical availability back to Q2 2017. Raw message and author fields face 2026 export masking	Best documented enterprise access in this set. Complex, custom-priced, and subject to content and export limits. Reddit source documentation
BrandJet	Reddit is a supported listening source. Keywords and phrases, source, sentiment, and date filters are documented. Public pages use inconsistent wording about posts versus comments and do not establish complete coverage, advanced Boolean, negative keywords, subreddit, author, language, or location filters	Email, Slack, daily or weekly digests, trend and spike views, sentiment, and one-click conversion of a signal into a lead. BrandJet reports average detection under 5 minutes. Reddit-specific webhook and API delivery were not verified	Starter: $79 monthly for 10,000 keyword signals. Pro: $200 monthly for 50,000 signals and 90-day retention. Annual billing includes 2 months free. A 7-day no-card trial is documented	Best for a documented signal-to-lead workflow. Coverage methodology and several query controls are not public. Product page and social listening

Reddit alert tool reviews

Reddit native notifications

Use native notifications when the trigger is tied to your account, a selected community, or a post you follow. Reddit documents account notification preferences, community notification levels, email preferences for replies and mentions, and followed-post comment notifications. Reddit’s notification guide, email preference guide, and followed-post documentation describe those controls.

This is the correct choice for personal participation, replies, and explicit u/username mentions. It is not evidence that Reddit will find an untagged brand, competitor, category phrase, or buying-intent sentence elsewhere.

Reddit Pro Trends

Reddit Pro Trends is the free native option for keyword discovery. It supports standard and Smart keywords and can surface eligible public posts and comments, related terms, conversation volume, communities, and AI-generated summaries. Reddit currently documents no tracked-keyword cap. The Pro Trends help page and Reddit’s trends guide describe the current feature.

Its limits are material. Coverage is public, safe-for-work, and English only. It excludes private, banned, quarantined, NSFW, sensitive-topic, chat, private-message, modmail, and deleted content. Weekly email summaries are useful for research, but they are not a minute-level operational alert channel.

F5Bot

F5Bot is a straightforward validated option for basic post and comment alerts. It supports include and exclude logic on paid plans, subreddit URL and author filters, and post-only or comment-only rules. Delivery expands from email to RSS, JSON, Slack, Discord, API, and webhooks as the plan rises. F5Bot documentation explains the controls, while F5Bot plans list price, cadence, limits, history, and integrations.

Choose it when a simple rule and delivery channel matter more than sentiment, reporting, or assignment. The free plan’s delay and quotas make it a discovery or low-volume option, not a guaranteed urgent-response system.

RedditAlert

RedditAlert is a focused Reddit product for users who want Boolean, regex, or AI prompt rules without buying a broader suite. It documents posts and comments, monitored-subreddit quotas, match reasoning, a dashboard, and email delivery. The vendor reports delivery under 30 seconds. Current pricing defines the free and Personal limits.

Its public integration story needs careful wording. A vendor comparison says paid plans have a REST API, but the pricing table does not clearly repeat that claim, and Slack was described as planned. The vendor’s F5Bot comparison is useful context, but buyers should confirm non-email delivery before purchase.

Syften

Syften fits when query precision is the main requirement. It documents exact phrases, AND, NOT, subreddit or site scope, author filters, post-versus-comment controls, reply targets, language, and AI acceptance logic. It also supports email, Slack, RSS, API, and webhooks by plan. Syften’s Reddit page provides the query details.

The tradeoff is plan-based capacity. Entry and Standard cap filters, daily results, and archive length. Pro raises those limits and provides unlimited archive, but the public material does not independently prove complete Reddit coverage.

Octolens

Octolens is suited to B2B teams that want AI relevance, sentiment, intent labels, summaries, and delivery into Slack, email, webhooks, API, or MCP. It documents posts and comments, negative keywords, AND/OR logic, specific subreddit and author controls, CSV export, and unlimited seats. Octolens’ Reddit page covers the feature set.

Use the cadence on the pricing page, not generalized landing-page language. Pro lists hourly refresh, while Scale lists real-time refresh. Octolens pricing also documents mention limits, keyword limits, history, and overage units. The product is comparatively expensive, and its public methodology does not prove universal coverage.

Awario

Awario is a lower-cost way to place Reddit inside a wider listening program. It documents public Reddit posts, Boolean queries, language, source, time, sentiment, email, Slack, dashboards, reports, configurable recipients, and a Leads module. Awario’s Reddit page also says location filtering is unavailable for Reddit because Reddit does not provide user-location data.

Comment coverage was not confirmed in the reviewed first-party material. That makes Awario a reasonable option when documented post monitoring and cross-platform listening are sufficient, but not when comment coverage is a non-negotiable requirement.

Brand24

Brand24 fits teams that need listening analytics, reports, exports, roles, and several delivery channels. It documents public Reddit posts and comments, required and excluded keywords, Boolean logic, sentiment, author or domain filters, tags, language, alerts, storm detection, and AI analysis. Brand24’s Reddit page describes coverage, while current pricing defines plan cadence and limits.

The main decision is speed versus cost. Individual refreshes every 12 hours and retains 1 month, which may be too slow for support or reputation alerts. Team refreshes hourly and retains 12 months, but starts at a higher price. Historical sampling should not be treated as complete history.

Mention

Mention is a broad media-monitoring suite rather than a precise subreddit-targeting product. It documents public subreddit posts and comments, Boolean, language, source, country, URL exclusions, integrations, sentiment, summaries, spike alerts, assignments, export, and paid history. Mention’s source documentation also says specific-subreddit targeting is unavailable.

Mention retired Publish and Respond on January 30, 2026, so it should not be presented as a current native reply or publishing tool. The retirement notice confirms that status. Choose Mention for broad monitoring workflows, not for exact community scoping.

Hootsuite

Hootsuite has two Reddit offerings that should not be combined. The Reddit by Synaptive app is a $5.99 monthly add-on for subreddit streams and multi-keyword searches. The app listing documents that lightweight option.

Lumen is the broader listening workflow, with posts and comments, sentiment, summaries, peak detection, comparisons, reporting, assignments, and routing that vary by plan. Hootsuite’s Professional plan provides current search-window context. Hootsuite is most sensible for an existing customer who wants Reddit inside the same operating environment. Exact Reddit latency and detailed author, exclusion, and location controls were not clearly established in the reviewed material.

Sprinklr

Sprinklr has the clearest documented enterprise Reddit access in this set. It supports public posts and comments through the Official Firehose API, specific-subreddit ingestion, exact author matching, language, sentiment, emotions, topics, relationships, dashboards, alerts, assignments, replies, reporting, history, and backfill. Sprinklr’s Reddit source documentation also documents approximate ingestion and engagement refresh times.

The same source explains the limits: NSFW and 18+ exclusions, possible moderation delay, no Reddit location metadata, deletion compliance, and 2026 masking of raw message and author fields in certain exports. Custom pricing and enterprise implementation make it unsuitable for buyers seeking a simple self-serve alert.

BrandJet

BrandJet is relevant when a team wants monitored signals connected to sentiment, trend, alert, and lead workflows. Its current pages document Reddit as a source, keywords and phrases, source and sentiment filters, email and Slack alerts, digests, spike views, and one-click conversion of a signal into a lead. BrandJet reports average detection under 5 minutes. The BrandJet product page and social listening page provide the current evidence.

Its public documentation leaves important coverage questions open. The pages use inconsistent wording about posts versus comments, do not disclose the access method, and do not establish advanced Boolean, negative keywords, subreddit, author, language, location, or Reddit-specific webhook and API capabilities. Buying-signal conversion is a workflow feature, not proof that every classified result is a qualified lead.

Tools that are no longer current recommendations

GummySearch is not a current recommendation for new buyers. It stopped new signups, payments, and upgrades after November 30, 2025. Existing paid users may retain transitional access through November 30, 2026 depending on billing, with full shutdown and data deletion scheduled for December 1, 2026. Its official explanation cites the absence of a commercial license agreement with Reddit. GummySearch’s final notice provides the dates and status.

TrackReddit is also excluded. No current verifiable first-party product, pricing, or support documentation was found, and the present TrackReddit domain appears unrelated to the original monitoring product. That supports exclusion from a current buyer guide, but not an invented shutdown date.

How to choose and implement Reddit alerts

Use one decision and implementation process rather than separate selection, setup, and pilot checklists.

1. Define the job and content requirement

Choose one primary objective: personal notifications, brand reputation, support, competitor research, category discovery, buying signals, or enterprise intelligence. Then decide whether posts are sufficient or comments are required. Never infer comment coverage from a generic “Reddit monitoring” claim.

For cross-channel planning beyond Reddit, use BrandJet’s guide to social media monitoring.

2. Build separate keyword groups

Create distinct rules for:

• Exact brand names, products, domains, founders, handles, and misspellings
• Competitors, competitor products, alternatives, and switching language
• Category problems, jobs to be done, features, and technical vocabulary
• Buying phrases such as “recommend,” “looking for,” “best tool,” “what do you use,” and “worth paying for”
• Risk language such as “scam,” “bug,” “outage,” “refund,” “cancel,” “security,” and “privacy”

Separating direct mentions from broad discovery makes priority, ownership, and measurement clearer.

3. Add exclusions and scope communities

Exclude unrelated dictionary meanings, jobs, tickers, place names, games, films, music, fandoms, programming libraries, test accounts, giveaways, coupons, affiliate spam, and irrelevant NSFW terms. Add exclusions carefully because an aggressive rule can hide a legitimate complaint.

Start broad for 1 to 2 weeks, then classify communities into high-intent category, competitor, professional, support, broad industry, and noisy groups. Keep one broad rule as a recall check while routing urgent alerts only from useful communities. BrandJet’s guide on how to monitor Reddit discussions expands this process.

4. Match cadence and delivery to the consequence

Weekly summaries can suit research. Reputation, support, and sales review may require hourly or minute-level delivery. Use the cadence documented for the exact plan. Vendor-reported latency is not proof that every item will arrive within that time.

Email may suit one person. Teams may need Slack, assignments, webhooks, API access, history, export, and reporting. Include keyword, mention, topic, daily-result, monitored-subreddit, user, retention, and overage units in the cost calculation.

5. Assign response priorities

Priority	Signal	Recommended internal target
P1	Safety, security, legal risk, major outage, or viral escalation	Triage within 15 minutes; assign an owner within 30 minutes
P2	Direct complaint, support issue, damaging factual error, or explicit brand mention	Triage within 30 minutes; decide on a response within 4 hours
P3	Recommendation request, alternative search, or switching language	Review within 1 hour during coverage; act the same business day
P4	Trend research, feature requests, and broad sentiment	Daily or weekly review

These are operating recommendations, not vendor guarantees. BrandJet’s guide to real-time brand mentions covers the wider response process.

6. Validate buying signals and respond carefully

A match can indicate interest, rejection, sarcasm, research, or an unrelated meaning. AI relevance and intent labels can improve triage, but a person should inspect the public conversation, subreddit context, and community rules before accepting a lead.

When responding, disclose affiliations, avoid scripted sales language, answer the question first, and respect subreddit rules. Store the original Reddit link, matched rule, owner, relevance decision, response decision, status, dismissal reason, and outcome.

7. Run a 30-day review cycle

During the first month:

1. Review false positives weekly.
2. Run a manual Reddit search sample for missed posts and comments.
3. Compare broad discovery with operational rules.
4. Split overloaded queries and retire rules that produce no action.
5. Check whether post and comment coverage behave differently.
6. Measure alert precision, action rate, time to triage, time to response, false-negative sample rate, direct mention coverage, opportunity progression, support resolution, and duplicate rate.
7. Expand keywords, sources, users, or integrations only after precision is acceptable.
8. Recheck pricing, limits, integrations, and product status every quarter.

A low-volume rule that produces relevant support or purchase conversations can be more useful than thousands of generic mentions. For a focused operating guide, see how to track Reddit brand mentions.

Reddit coverage and data-access limits

No responsible tool comparison should promise complete Reddit coverage by default. Vendors may obtain public content through Firehose access, approved APIs, commercial agreements, or other compliant discovery methods. Those methods can differ in content type, delay, history, deletion handling, moderation timing, NSFW access, private-community access, export rights, and stability.

Reddit’s Data API Terms give Reddit control over commercial use, availability, retention, deletion compliance, and policy changes. Read product claims literally:

• “Posts” does not prove comments.
• “Real time” does not prove a guaranteed latency for every plan.
• A historical date range does not prove complete historical capture.
• A suite-level location filter does not prove that Reddit supplied location data.
• Official data access can still include content, deletion, and export restrictions.
• A vendor’s intent label is an interpretation until the underlying public conversation is reviewed.

Google Alerts can serve as an indexed-web fallback, but it is not a documented live Reddit post-and-comment feed. It should not be relied on for comprehensive or low-latency monitoring.

Frequently asked questions

Does Reddit have built-in keyword alerts?

Reddit’s account and community notifications cover replies, explicit u/username mentions, selected community activity, and followed-post comments. They do not provide a general arbitrary-keyword rule across public Reddit. Reddit Pro Trends is the separate native product for eligible public English-language posts and comments around standard or Smart keywords. See Reddit notification settings and Reddit Pro Trends.

How do I get an alert when a keyword appears on Reddit?

Choose according to delivery and workflow. Reddit Pro Trends provides free discovery, while Reddit documents weekly keyword-summary emails. F5Bot provides a free personal tier and paid email, Slack, feed, API, and webhook options by plan. RedditAlert, Syften, Octolens, and broader listening suites add different levels of query logic, history, analysis, and team workflow. Confirm the exact plan’s post and comment coverage before relying on it.

Can Reddit alert tools monitor comments as well as posts?

Some can. Reddit Pro Trends, F5Bot, RedditAlert, Syften, Octolens, Brand24, Mention, Hootsuite Lumen, and Sprinklr document posts and comments. Awario’s reviewed Reddit page explicitly documents posts, while comment coverage was not confirmed. BrandJet’s public pages use inconsistent wording, so this guide does not claim complete post-and-comment coverage for BrandJet.

What is the best free Reddit alert tool?

For free native discovery, start with Reddit Pro Trends because Reddit documents eligible posts and comments, related terms, communities, summaries, and no current keyword cap. For alert delivery, F5Bot’s free personal plan includes 5 keywords, 10 hits per keyword daily, 20 daily alerts, and a possible delay of up to 2 hours. RedditAlert’s free plan includes 2 alerts, 2 monitored subreddits, and 25 monthly emails. See F5Bot’s free limits and RedditAlert’s free plan.

Can I monitor a specific subreddit or Reddit author?

It depends on the product. F5Bot supports subreddit URL and author filters. Syften supports subreddit or site scope and author filters. Octolens documents specific subreddit and author controls. Sprinklr supports specific-subreddit ingestion and exact author matching. Mention explicitly says it cannot target a specific subreddit. Native community notifications follow community activity, but they are not arbitrary keyword rules within every selected community.

How fast are Reddit keyword alerts?

Cadence ranges from weekly summaries to hourly refresh and vendor-reported minute-level delivery. Reddit documents weekly keyword-summary emails. F5Bot says its free tier may take up to 2 hours, while Silver lists within 5 minutes. Syften targets under 1 minute. Octolens lists hourly refresh for Pro and real-time refresh for Scale. Brand24 lists 12-hour updates for Individual and hourly updates for Team. Sprinklr documents ingestion around 1 to 3 minutes. Use the figure for the exact plan and treat it as a reported target, not a universal guarantee.

Can Reddit alerts go to Slack, email, a webhook, or an API?

Yes, depending on the product and plan. F5Bot adds Slack, Discord, feeds, API, and webhooks at higher tiers. Syften documents email, Slack, RSS, API, and webhooks by plan. Octolens documents Slack, email, webhooks, API, and MCP. Brand24 supports email, push, Slack, and Teams, with an API add-on on eligible plans. Mention supports several integrations and add-ons. BrandJet documents email and Slack, but Reddit-specific webhook and API delivery were not verified.

Run the pilot

Choose one monitoring job, decide whether comments are required, create separate brand, competitor, category, buying-signal, and risk rules, and run a 30-day pilot with one named owner. Start with native Reddit tools when they solve the job. Move to a specialist service or listening suite only when you need faster routing, better exclusions, comment coverage, team workflow, history, export, or multiple sources.

If qualifying Reddit conversations into sales work is part of the brief, include BrandJet’s social listening workflow in the same test and judge it by the same coverage, precision, latency, and action-rate evidence as every other option.