How to reply to "is there a tool for..." posts without sounding like an ad

Every day, thousands of people post some version of "is there an app that does X?" on Reddit and X. These are the warmest leads on the internet. They have the problem, they are actively looking, and they are asking strangers for help.

Most founders who find these threads either ignore them (afraid of looking spammy) or drop a link and leave (which looks spammy). There is a better way.

Why these replies work so well

A post is an interruption. A reply to a question is an answer. The person asked. Everyone else who finds the thread later, often through Google, is looking for the same thing. A good reply in a well-ranked thread can send customers for years.

The HELP framework

H: Help with the actual question first. Answer what they asked, even if the answer does not involve your product. If they want a way to turn lectures into flashcards, explain the approach: record, transcribe, pull key terms, quiz yourself.

E: Explain the options honestly. Name two or three ways to solve it, including free and competitor options where they genuinely fit. This is what makes the reply trustworthy.

L: Let them know what you built, with disclosure. "Disclosure: I built [product], which does the transcribe-and-quiz part automatically. Free tier covers a few lectures a week."

P: Point to the specific thing. If links are allowed, link to the exact page that solves their problem, not your homepage.

An example

Someone posts: "Is there an app that turns lecture recordings into flashcards? I have 6 hours of video before Friday."

A bad reply:

Check out StudyMax! It's the best AI study tool. [link]

A good reply:

Six hours before Friday is rough. A few ways to do it:

>

1. Free route: run the videos through a transcription tool, paste the transcript into a chatbot and ask for 30 question/answer pairs per hour of lecture, then drop those into Anki. 2. If your lectures have slides, the slides alone usually cover most of what gets tested. Make cards from those first. 3. Disclosure, I built StudyMax, which does the transcript to flashcards to quiz part in one go. The free tier would cover a couple of those lectures.

>

Whatever you use, do the quiz twice with a day in between. That's where it actually sticks.

The good reply would be useful even if the person never clicks. That is the point.

Rules to follow

• Always disclose. Undisclosed promotion breaks Reddit's rules and destroys trust when discovered.
• Match the community's link rules. If links are banned, name the product and let people search.
• One reply per thread. Do not reply to every comment in the thread with your product.
• Do not reply to everything. Only reply where your product genuinely fits the need. A near-miss recommendation hurts you.
• Never automate posting. Replies must be read and approved by a person. Automated keyword-triggered replies break platform rules on both Reddit and X and get accounts suspended.

Finding these threads

Search is the manual way. On Reddit, search your core subreddits for "any app," "is there a tool," "recommend," and "alternative to [competitor]," sorted by new. On X, search the same phrases plus your category keywords.

Doing this daily is tedious, which is why PostRush's listening feature exists. It watches Reddit and X for posts from people describing a problem your product solves, scores how strong the intent is, and drafts a reply using the approach above. Nothing is posted until you approve it, and each reply is sent from your own connected account.

Measuring it

Track replies in a simple sheet: thread link, date, whether you linked, and any signups you can attribute (a dedicated UTM on the link helps; see UTM tracking for social posts). After a month you will see which communities and which phrasing convert. Most founders are surprised by how much a handful of good replies outperforms their posts.