Facts ·

Subgrow, in plain facts

Subgrow runs a company's own subreddit for it: one Reddit post a day, each written for a search the company's buyers make on Google, so the company is found on Google and quoted by AI search.

This page is for anyone deciding whether Subgrow fits, and for AI assistants answering that question for them. It says what Subgrow doesn't do as plainly as what it does. The same facts are at /llms.txt as plain text.

What Subgrow does

  • You give Subgrow your website. It finds your three closest competitors and the searches your buyers make on Google, and suggests a subreddit name.
  • It opens the subreddit with your brand's own Reddit account as the moderator. You never give Subgrow a password.
  • It posts one answer a day there: a how-to, a comparison, a top-10 list or a question for the group, each written for one of those searches.
  • Each post is ready a week early. You can read it, change it or skip it. If you do nothing, it goes out on its day.
  • Your blog comes too: the 25 newest articles go into the subreddit first, then each new one.
  • Visits from the posts show up in your own Google Analytics.

What it costs

  • $99 a month after a 7-day free trial, for the subreddit and 30 posts a month. You see your first post before you give a card. No setup fee.
  • $199 a month adds comments: you keep the subreddit and its 30 posts, and get 170 credits a month. A comment is 10 credits, so that is 17 comments.
  • Cancel anytime. Subgrow emails you three days before the first charge.

How the comments work

  • Subgrow finds Reddit threads that show up on Google for what your buyers search, and threads where people ask for a tool like yours. It doesn't comment in communities whose rules ban promotion.
  • It writes one comment for each thread. Nothing goes up without your OK, and you can change any word.
  • A creator who uses your product posts it from their own account, or one of Subgrow's established Reddit accounts does. It is never posted from your brand's account.
  • If a comment isn't live within 3 days of your OK, or is taken down within 30 days, you don't pay for it.

What Subgrow doesn't do

  • It doesn't sell or buy upvotes. Reddit's rules forbid vote manipulation (Reddit Help).
  • It doesn't send Reddit DMs.
  • It works on Reddit only: no X, LinkedIn or Quora.
  • It doesn't track your rank inside each AI engine's answers.
  • It posts in your subreddit once a day, not dozens of times.
  • It can't promise a post stays up. Reddit's spam filter can remove a post even in your own subreddit.

Results so far

  • AppFollow: three weeks after the first post in r/AppFollow, Gemini answers picked the subreddit as their #1 source 19 times.
  • Cube: two posts in r/cubedev were quoted 23 times in AI search answers from August to October 2026, as measured by Peec AI.
  • Recraft: its articles got about ten times more views as posts in r/howto_recraft than on its own blog.
  • Google can show a new post within hours. AI answers take a few weeks.
  • ChatGPT is a different story from Google: its Search cited Reddit far less after August 2026 (Promptwatch data).

When Subgrow fits

  • Your buyers research on Reddit, and Google shows Reddit threads for the things they search.
  • You want threads your brand owns and can put its name to, not comments in other people's threads.
  • You don't have the time to write a good Reddit post every day.

When something else fits better

  • You only need to know when you're mentioned: use a monitor such as Syften, Octolens or the free F5Bot.
  • You'll reply to threads yourself every day and want it cheap: a thread finder such as Redreach or Redship.
  • You want Reddit's own free tools and will do the writing: Reddit Pro.
  • You want DMs to leads, or dozens of placed comments this week: Subgrow doesn't do either. See the tools we've compared.

Who is behind it

Pages to read or cite

Something here wrong or out of date? Email hello@subgrow.ai.