Pick your alert type (keyword, brand mention, competitor, or subreddit watch) and your delivery channel (Slack, Email, Webhook, Telegram, Discord). Each guide has a real setup walkthrough, a working payload example, tools that fit, and honest pros and cons. Free options where they exist, paid where they earn it.
For free Reddit alerts, use F5Bot for email (up to 4 keywords, 5-15 min delivery). For real-time Slack or webhook delivery, Syften ($19/mo) and Notikey ($24/mo) are the cheapest options with native integrations. Pick your combo below for the full setup, payload schema, and tool tradeoffs.
| Channel | Speed | Free option? | Best for | Cheapest paid |
|---|---|---|---|---|
| Slack | 30-60 sec (paid), 5-15 min (free hop) | F5Bot to Slack Email App | Real-time team triage | Syften $19/mo |
| 5-15 min (F5Bot) | Yes, F5Bot 4 keywords | Batched triage, archive | Free (F5Bot) | |
| Webhook | 30-60 sec | Roll your own poller | CRM, ticketing, dashboards | Syften $19/mo |
| Telegram | 5-10 sec (via n8n) | n8n self-hosted free | Mobile-first solo triage | Free (n8n + bot) |
| Discord | ~10 min (MEE6), sub-min (custom) | MEE6 + Reddit RSS | Community-led products | Free (MEE6) |
The fastest free path is F5Bot to an email inbox, then a Slack Email App that drops into a #reddit-alerts channel.
F5Bot is free, sends emails within 5-15 minutes of a Reddit post or comment matching your keyword, and supports up to 4 keywords on the free plan.
Syften, Notikey, and Brand24 all support custom webhooks where each keyword match POSTs a JSON payload to your endpoint within seconds.
Pipe every Reddit mention of your brand name (plus common misspellings) into a dedicated #brand-mentions Slack channel using Syften, Notikey, or Brand24.
Add your brand name to F5Bot for free real-time-ish (5-15 minute) email alerts on every Reddit post and comment that mentions it.
Syften, Notikey, and Brand24 ship custom webhook destinations that POST a JSON payload to your endpoint within 30-60 seconds of a brand mention firing.
Track each competitor brand name (plus alternative and vs as context words) in Syften or Notikey, route to a dedicated #competitor-watch Slack channel with sub-60-second delivery.
Add competitor brand names plus context words (alternative, vs, review) to F5Bot for free email alerts within 5-15 minutes.
Create a Telegram bot via BotFather, get a chat or channel ID, and use a Make.
For free, subscribe to a subreddit's built-in RSS feed (https://reddit.
Use Reddit's built-in subreddit RSS feed (https://reddit.
Create a Discord webhook on your target channel and pipe the subreddit's RSS feed (or a paid tool like Syften) into it via Zapier, n8n, or a simple Cloudflare Worker.
F5Bot keyword alerts to email. 4 keywords, batched morning review.
Set up keyword email alertsSyften competitor + alternative keywords to Slack with sub-60-sec delivery.
Set up competitor Slack alertsWebhook delivery into your CRM, ticketing, or internal dashboard with HMAC signing.
Set up mention webhooksMEE6 plus Reddit RSS into a Discord channel. Free, members can claim and discuss threads.
Set up subreddit Discord alertsCommon-word brands (Atlas, Pulse, Nova) flood your inbox with non-matches. Pair with a context word (your brand AND software OR app) and exclude noisy subs.
Alerts without a triage owner become write-only channels in 3 weeks. Assign one person per shift, even informally, and audit weekly.
Pitchy replies get downvoted within an hour. Lead with the answer, mention your product as a sentence not a paragraph, disclose your role in your account flair.
Tools retry on non-2xx responses. Without a Redis or DB dedupe by permalink, you double-fire downstream actions during transient errors.
Real-time Slack pings cost focus. For research and trend tracking, a daily email digest beats per-post pings on focus per dollar.
Brand accounts that reply often get auto-removed by aggressive AutoMod rules. Test from your reply account first; vary linked domains; never use Reddit only to drive traffic.
Tools like MediaFast sit alongside F5Bot, Syften, and Notikey in this category: they surface high-intent Reddit threads and pipe them to your channel of choice. If you are evaluating Reddit alert tools, the directory at /reddit-tools compares 15 of them honestly with pricing and pros/cons. For the Reddit-specific tradeoffs of each channel, pick a guide below.
Picking the right channel, tool, and setup pattern.
F5Bot is genuinely free, supports 4 keywords, and emails you within 5-15 minutes of a match. For real-time delivery to Slack or webhooks you need a paid tool: Syften ($19/mo) and Notikey ($24/mo) are the two cheapest with native channel integrations.
Webhook is the fastest (30-60 seconds on Syften or Notikey), followed by native Slack integrations (same speed). RSS-based Slack posts take ~5 minutes. Email lags 5-15 minutes via F5Bot, 15-60 min via paid digest tools. Telegram and Discord depend on your glue (sub-minute via n8n/Workers, ~10 min via MEE6).
No for email and Slack (F5Bot to inbox, Syften native Slack are both no-code). Yes for webhooks (you need an HTTPS endpoint). Telegram and Discord sit in the middle: zero-code via MEE6 or Make.com, code-level if you want sub-minute custom polling.
Three knobs. First, restrict to specific subreddits where your audience actually hangs out. Second, require multi-word phrases (not single keywords). Third, use exclusion lists for noisy subs and irrelevant terms. Paid tools like Syften and Notikey support all three; F5Bot only does basic keyword matching.
Depends on team size. A solo founder should track only high-intent keywords (your brand plus alternative or vs, competitor plus alternative). A 5+ person team can cover both mentions and trend-keywords because triage capacity is higher.
Mechanically nothing, but the response playbook differs. Brand mentions need triage (was this positive, negative, neutral, who replies?). Keywords are research signal (someone needs this; can our product help?). Most teams route them to different channels with different owners.
MediaFast's Opportunity Finder pulls the threads where your product solves a stated problem and pipes them to email or webhook. No multi-tool stack to maintain.
Try Opportunity Finder