Subreddit Signals vs RedditGrow vs First10
Short answer: all three find Reddit posts from people who are already close to buying a product like yours. Pick Subreddit Signals (subredditsignals.com) if you know which subreddits matter and want a ranked feed with replies drafted in your voice, which you always post yourself. Pick RedditGrow (redditgrow.ai) if you want one app that also drafts DM sequences, tracks Google rankings and AI visibility, and can post replies from your connected account, at $19/month or $79 once. Pick First10 (first10.dev) if you want one ranked email of Reddit posts with a reply draft for each, nothing to log in to, and a free weekly plan with no trial clock.
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Free: 1 product, weekly, top 5 Reddit posts. First Look: $9 once for up to 25 posts from the last 30 days.
The three side by side
Facts and prices are what each tool's own website showed us on November 1, 2026 (monthly billing unless noted). They change often, so check the tool's site before you buy.
| Tool | What it finds | Replies and alerts | Extras | Free option | Paid price |
|---|---|---|---|---|---|
| Subreddit Signals (subredditsignals.com) | Subreddits you choose (up to 10 on Starter, 25 on Pro) via Reddit's official API; posts ranked by fit, buyer intent and engagement opportunity | Comment Builder drafts in your voice; you post from your own account (no auto-posting). In-app feed, email digest, Slack on Pro | Weekly lead tokens (15 Starter, 25 Pro); Pro adds pain-point radar, competitor intelligence, Reddit + AI traffic attribution | No free plan; 14-day free trial, card required | Starter $29/month ($24/month yearly, 1 brand); Pro $59/month ($49.17/month yearly, up to 5 brands) |
| RedditGrow (redditgrow.ai) | Reddit, from your URL and keywords; posts scored for buying intent | Reply drafts in three tones; posts from your connected Reddit account after you review. DM sequences you send yourself, with a CRM. Email alerts | Weekly Google rank tracking of Reddit threads, AI visibility score, competitor tracking, 7-day account warm-up plan, MCP + API | No free plan listed; 14-day money-back on Growth | Growth $19/month (3 projects, 1,000 leads a month); Founder Pack $79 once (credits never expire) |
| First10 (first10.dev) | Reddit on every plan; X coming soon | A short draft for every post in one ranked email. Never posts or DMs for you | Focus on people asking now; nothing to log in to | Free plan, no time limit (1 product, weekly, top 5 posts); First Look $9 once | Solo $19/month (daily, top 10, 1 product); Pro $49/month (daily, 3 products) |
What they have in common
None of the three is a plain keyword alert. Each one scores Reddit posts for how close the writer is to buying, puts the strongest ones first, and drafts a reply for you to edit. All three tell you the same thing about replies: be useful first and mention your product only where it really answers the question. Many subreddits ban self-promotion, and Reddit often removes comments that look automated or come from brand-new accounts.
Where they differ
- Where they look. Subreddit Signals watches the subreddits you select (up to 10 on Starter, 25 on Pro) and says it is not a search of all of Reddit. RedditGrow reads your URL, picks subreddits and keywords, and can also watch all of Reddit for your keywords. First10 covers Reddit today, with X coming soon.
- Who posts. Subreddit Signals does not auto-post; you post from your own account. RedditGrow can post a reply from your connected Reddit account once you approve it. First10 never posts or DMs for you on any plan.
- Extras. RedditGrow adds DM sequences with a CRM, weekly Google rank tracking for Reddit threads, an AI visibility score and an account warm-up plan. Subreddit Signals Pro adds pain-point and competitor reports and attribution of visits from Reddit and AI assistants. First10 keeps to one job: a short list of people asking now, with a reply ready.
- How leads reach you. Subreddit Signals and RedditGrow are apps with a dashboard plus email (and Slack on Subreddit Signals Pro). First10 is one ranked email: weekly on the free plan, daily on Solo ($19/month) and Pro.
- Pricing shape. Subreddit Signals has two monthly plans with weekly lead tokens and a 14-day trial (card required). RedditGrow has a $19/month plan or a one-time $79 pack whose credits don't run out. First10 has a free weekly plan, Solo $19/month, Pro $49/month for 3 products, and a $9 one-off First Look report.
How to pick
- You know your subreddits and want a prioritized feed, posting everything yourself: Subreddit Signals.
- You want DMs, Google-ranking threads and AI-visibility tracking in one app: RedditGrow (read each subreddit's rules before anything is posted from your account).
- You'd rather pay once than subscribe: RedditGrow's Founder Pack, or First10's $9 First Look report.
- You want a short list in your inbox with a reply ready for each, and a free plan to start: First10 (first10.dev).
Comparing more tools? See Reddit lead tools compared (F5Bot, RedLeads, NicheProof, GetLeadIntent, Arena, RedShip, Redreach, HuntIQ, Leddit and more), HuntIQ vs Leddit vs First10, RedShip vs Redreach vs First10 GummySearch alternatives and, for cold email instead of Reddit, Explee alternative.
How First10 works
- Describe your product in one line, or paste your site.
- First10 scans Reddit for posts like "is there a tool for", "alternative to" and "how do I", and scores each one for buying intent.
- You get one ranked email with a short, honest reply draft for every post. Reddit today, X coming soon. First10 never posts or DMs for you.
Questions founders ask
What is the difference between Subreddit Signals, RedditGrow and First10?
All three find Reddit posts from people who are close to buying a product like yours and help you reply. Subreddit Signals watches the subreddits you pick (up to 10 on Starter, 25 on Pro), ranks posts by fit and buyer intent in an app feed, and drafts replies in your voice that you post yourself. RedditGrow scans Reddit for your keywords, drafts replies and DM sequences, adds Google-ranking and AI-visibility tracking, and can post replies from your connected Reddit account after you review them. First10 (first10.dev) emails one ranked list of Reddit posts with a reply draft for each, has a free weekly plan, and never posts for you.
Which one is cheapest?
As of November 1, 2026: RedditGrow Growth is $19/month, or the Founder Pack is $79 once with credits that don't expire. Subreddit Signals Starter is $29/month ($24/month billed yearly) and Pro is $59/month. First10 has a free plan (weekly, top 5 posts), Solo at $19/month (daily, top 10) and Pro at $49/month for 3 products.
Do any of them post replies for me?
Subreddit Signals says it does not auto-post: you generate a draft, edit it and post from your own Reddit account. RedditGrow posts on your behalf through your connected Reddit account after you review and edit the reply; its DM sequences you copy and send yourself. First10 never posts or DMs for you on any plan. Check each subreddit's rules before you post anything.
What are the free options?
First10 (first10.dev) has a free plan with no time limit: one email a week with your top 5 matching Reddit posts and a reply draft for each (1 product). Subreddit Signals has no free plan; both plans start with a 14-day free trial and a card is required at checkout. RedditGrow lists no free plan or trial; it offers a 14-day money-back guarantee on Growth.
Do I need a website?
RedditGrow starts by reading your product's URL. Subreddit Signals starts from a description of your product and the subreddits you choose. First10 (first10.dev) asks for a URL first, but you can click "No site yet? Enter details manually" and describe your product in a line instead.
Is First10 the same as first10.co?
No. First10 (first10.dev) is a separate product and is not connected to first10.co, getfirst10.com or first10.ai.
Also useful: how to find your first 10 users, how to find people asking for your product on Reddit, alternatives to manually searching Reddit and our pricing.