ReplyGuy – AI Reddit auto replies for lead gen and brand protection
Excited to share something I've been building recently called ReplyGuy. I made it to solve a personal pain with a SaaS product I built, which was that we were always monitoring Reddit and Twitter to see if anyone had mentioned keywords indicating they were looking for us. Before, we had to go manually respond to posts, often missing good mention opportunities. Would love for HN folks to try it and let me know what you think!
ReplyGuy – AI Reddit auto replies for lead gen and brand protection launched on December 28, 2023 with 7 votes, #1,211 of 3,780 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 2 years on.
What it does
Find the best places to mention your product with AI
ReplyGuy finds the perfect conversations to mention your product and drafts suggested replies. An easy way to convert text, URL or PDF to summarizing or full--> <!-- speech In Top #2 we have @ReplyGuy This was such a nice find. It uses AI to reply on Twitter and Reddit based on a context you give and some keywords to scrape relevant posts. I had an amazing amount of Conversions from this. "It is really cool to see comments like this and then also see logs on my app where they actually come and use the site and search for that specific product. I think the degree of targeting to specific users actively interested in buying the product is more focused w/ this versus other marketing methods"…from replyguy.com
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Replyhub2024 · replyhub.co · ▲252Replyhub finds high-value Reddit conversations, tracks what ranks on Google, and helps you show up when ChatGPT and Perplexity recommend products — all from one dashboard.
mention.click2025 · mention.click · ▲161I built mention.click to help founders and marketers find real business leads, feedback, and opportunities by uncovering the right discussions on Reddit, without the hassle of keyword research. Backstory I was trying to prove ideas and products, I didn't like existing tools like ReplyGuy, Gummy search, while being cool, didn't work for me. I needed a specialized solution to find conversations where I could speak about my project, driven by AI (Not really) just filtering out extra noise. How it works You give a link to the website. mention.click uses AI to extract keywords and context. It…
ReplytSep 2026 · replyt.co · ▲10I kept finding Reddit threads where people were discussing problems my products solved, usually weeks after the discussion happened. Even when I joined those conversations, I had no idea whether they led to anything. A signup? A paying customer? Nothing? So I built Replyt. Replyt continuously watches Reddit for discussions related to a product, surfaces relevant conversations, and helps engage through public replies or contextual DMs. What became interesting was not finding the conversations, but measuring them. Replyt tracks visits, signups, and paying customers back to the Reddit…
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