You don't need to pay for a Reddit monitoring tool to track mentions of your brand or competitors. A free stack covers 80% of what a $99/mo listening platform does — and for early-stage founders, that's often enough.
This guide is a practical, step-by-step walkthrough of the free Reddit monitoring stack: what to set up, how long it takes, and where it falls short so you know when to upgrade.
The Free Stack in One Sentence
F5Bot for email alerts + saved Reddit searches for queries that don't fit a single keyword + a Google Alert for "[your brand] reddit" as a backup. Total cost: $0. Total setup time: ~30 minutes.
Step 1: Set Up F5Bot (10 minutes)
F5Bot is the backbone of any free Reddit monitoring setup. It scans Reddit (plus Hacker News and Lobsters) for keywords you specify and emails you when matches appear.
- Go to f5bot.com and create an account with your email.
- Add your brand name as the first keyword. Use exact match for distinctive names.
- Add 2–3 competitor names as additional keywords.
- Add any product-category buying-intent phrases relevant to you ("best CRM," "alternatives to [Competitor]," etc.).
- Verify your email and wait for alerts to start arriving.
F5Bot updates its index every ~15 minutes, which is comparable to most paid monitoring tools. The main limitation: each account has a keyword cap (currently ~15), and very common keywords will produce noisy alerts.
Step 2: Set Up Saved Reddit Searches (10 minutes)
F5Bot is good at single-keyword matches but bad at queries that need multiple terms or filters. For those, use Reddit's native search:
- Log in to Reddit and go to reddit.com/search.
- Run a query like
"alternatives to [Competitor]" subreddit:SaaSortitle:"looking for" CRM. - Sort by "New" to surface recent threads.
- Bookmark the search URL. Reddit's URLs preserve all filters, so refreshing the bookmark re-runs the search.
Useful saved searches to bookmark for B2B:
"alternatives to [your top competitor]"— highest-intent threads."looking for" + [your category]— buying-signal language."recommend" + [your category]— recommendation requests."frustrated with [Competitor]"or"switching from [Competitor]"— churn signals.
Check these bookmarks once a day. The threads that matter usually show up in the first 5–10 results.
Step 3: Set Up a Google Alert as Backup (5 minutes)
Google Alerts isn't real-time and doesn't catch most Reddit comments, but it does catch Reddit threads that have been around long enough to be indexed by Google — sometimes capturing high-traffic threads F5Bot might have missed.
- Go to google.com/alerts.
- Create alerts for:
"[your brand]" site:reddit.com,"[your competitor]" site:reddit.com. - Set "How often" to "As-it-happens."
- Set "Sources" to Web only.
This catches the threads that gained enough engagement to rank in Google search — usually the threads that matter most for SEO and brand association.
Step 4: Set Up a Triage Routine (5 minutes)
Free monitoring is only useful if you actually respond. Build a 10-minute daily routine:
- Open your email — review F5Bot alerts.
- Click through your bookmarked Reddit saved searches.
- Skim Google Alerts (usually 0–1 per day).
- For each high-intent thread: open, read the OP's question, draft a 3–5 sentence reply, post it.
10 minutes a day, 5 days a week. That's 50 minutes/week — less than most founders spend on email triage.
What the Free Stack Doesn't Cover
Be honest about the gaps:
- No sentiment scoring. You can't see at a glance whether a mention is positive or negative.
- No intent filtering. A mention of "[your competitor] is great" and "I'm leaving [your competitor]" look the same in the alert. You triage manually.
- No deep comment chain coverage. F5Bot indexes most comments, but very deep reply chains in long threads sometimes get missed.
- No reply drafting. You write every reply from scratch.
- No account safety layer. If you post too much, too fast, from a new account, you'll get shadowbanned — and the free stack won't warn you.
- No conversion tracking. You don't know which threads drove signups vs. just upvotes.
When to Upgrade to a Paid Tool
Three signals it's time:
- You're getting more than ~5 alerts a day and triage is taking too long.
- You want help drafting replies — manual writing is becoming the bottleneck.
- You've lost a Reddit account to a shadowban and want to make sure it doesn't happen again.
At that point, the relevant upgrades are:
- If you just need better alerts + sentiment: Brand24 or Mention ($99–$179/mo).
- If you want the full alert-to-post loop: RedditGrow ($49–$149/mo).
- If you do multi-platform outreach: Devi AI ($39/mo).
The Free Stack Math
For a solo founder with a distinctive brand name, the free stack covers ~80% of what most paid tools deliver and costs $0. The other 20% (sentiment scoring, reply drafting, account safety) becomes valuable above a specific volume threshold — usually around 5+ alerts/day or when you start scaling outreach beyond what one person can hand-write.
Until you hit that threshold, stay free. Most B2B founders pre-revenue and many post-revenue have no business paying $99/mo for capabilities they won't use weekly.
Our Take
F5Bot + saved searches + Google Alerts is the right starting stack for ~70% of early-stage B2B founders. It's free, it works, and the limitations are honest (sentiment, reply drafting, safety) — not deceptive. When you outgrow it, you'll know exactly which paid features matter to you, which makes the next purchase decision easy.
For more, see our best Reddit tool for tracking brand mentions, F5Bot alternatives, and F5Bot vs Brand24.