Find where to promote your app
Growth Engine scans Reddit and X for the exact conversations where people are already asking for, complaining about, or recommending an app like yours — so you can show up with a genuine answer instead of shouting into the void.
Set up your first scan in under a minute
Duolingo
Today's opportunities · Reddit + X
Language learning app you have the best experience with
I know this question was asked numerous times but I'm very interested to hear your opinions. So what apps helped you the most to reach your desired level in a foreign language?
I think it's finally time. What's the best way to learn Japanese?
Quick answer
The most effective way to promote your app for free is to join the conversations where people are already asking for it. Growth Engine is an app promotion tool that continuously searches Reddit and X for posts where real people want an app like yours, ranks each thread by how ready the person is to try something, tells you why it matched, and drafts a helpful, non-spammy reply — turning "I don't know where to promote my app" into a daily list of warm conversations to join.
How it works
From published to promoted in three steps
Describe your app
Paste your App Store or Play Store URL, or just your keywords. Growth Engine learns what your app does and who it's for — no manual keyword lists to maintain.
Get a daily feed of warm threads
Every day we surface fresh Reddit and X posts where people are asking for exactly what you built, each scored by buying intent and tagged with why it matched.
Reply and grow
Open the thread, use the AI-drafted reply as a starting point, and join the conversation as a real person. Save the best threads and track what you've already answered.
The basics
Publishing isn't launching
You hit Publish and the installs didn't come. That's normal — the app stores don't send traffic to apps nobody is searching for yet. The fastest, cheapest users come from the places where people are already describing the problem your app solves, in their own words, today.
The catch is those conversations are scattered across thousands of subreddits and a firehose of posts on X, and they scroll away in hours. Finding them by hand is a second job. Growth Engine does that search continuously and brings the handful that actually matter to you.
Because every match comes with the reason it surfaced and a draft reply, you spend your time being helpful in the right rooms instead of hunting for them. That's how indie apps get their first hundred real users without an ad budget.
The difference
Finding warm threads by hand vs. with Growth Engine
| By hand | With Growth Engine | |
|---|---|---|
| Finding the threads | Search dozens of subreddits and X every day, scroll for hours, and wade through mostly-irrelevant posts. | A daily feed of only the threads that match your app, gathered for you automatically. |
| Knowing what's worth it | Guess which posts have real buying intent and which are just people venting. | Every thread scored by intent, so the person ready to try something rises to the top. |
| Platform coverage | Track Reddit and X separately, and still miss posts that scroll away within hours. | One continuous scan spans the relevant subreddits and X, so nothing slips past. |
| Writing the reply | Start every reply from a blank box and risk sounding like an ad. | A helpful, human-sounding draft for each thread that mentions your app only where it fits. |
| Staying organized | Lose track of where you've already posted and what actually worked. | Save the best threads and mark what you've answered, all in one place. |
What Growth Engine does for you
A single workspace that turns the whole internet's app-shaped conversations into a short, prioritized to-do list.
Intent-ranked results
Not every mention is worth your time. Each thread is scored so the person actively looking for a solution rises above the person just venting.
Reddit + X coverage
One scan spans relevant subreddits and X conversations, so you're not maintaining separate searches on separate platforms.
Why it matched
Every result explains the signal it caught — a feature request, a competitor complaint, a 'does anything do X?' question — so you reply with context.
AI-drafted replies
Start from a helpful, human-sounding draft that mentions your app naturally. Edit and post — no cringe, no copy-paste spam.
Daily fresh scans
New threads surface every day and stale ones drop off, so your feed is always the freshest opportunities, not last month's.
Save & track
Bookmark the best threads, mark what you've replied to, and keep a running record of where your app is being discussed.
Who it's for
Built for anyone promoting an app without an ad budget
If you've shipped an app and the installs aren't coming, Growth Engine turns the internet's app-shaped conversations into your daily promotion list.
Indie developers post-launch
You published, the store isn't sending traffic, and you have no ad budget. Growth Engine finds your first hundred users in conversations that already exist.
Solo founders & makers
You're marketing in the gaps between building features. A daily list of warm threads means promotion takes minutes instead of becoming a second job.
App marketers & growth teams
You need repeatable, non-spammy community reach across Reddit and X. Intent scoring and drafts let outreach scale without burning goodwill.
Key facts
Growth Engine at a glance
The cheapest first users come from conversations that already exist — people describing your app's problem in their own words.
Growth Engine scans Reddit and X continuously, not just once, so opportunities don't scroll away before you see them.
Every thread is scored by intent, so you spend time on the people most likely to actually try your app.
AI-drafted replies give you a helpful, human starting point — you're joining conversations, not spamming them.
Frequently asked
Growth Engine, answered
Where does Growth Engine find these conversations?
It searches Reddit and X for public posts that match what your app does — feature requests, complaints about competitors, and 'is there an app that…' questions. You get a daily feed of the freshest, highest-intent threads.
Is this spam? Will I get banned from subreddits?
No. Growth Engine points you to relevant conversations and drafts a genuinely helpful reply that mentions your app only where it fits. You post as yourself, edit the draft, and add real value — the opposite of blasting links.
Do I need to build keyword lists?
No. Paste your store URL or a short description and Growth Engine figures out the topics and phrasing people use. It keeps scanning without you maintaining anything.
How is this different from just searching Reddit myself?
Manual search means checking dozens of subreddits every day and reading through mostly-irrelevant posts. Growth Engine does that continuously, filters to the threads that match your app, scores them by intent, and drafts a reply — so you spend your time responding instead of hunting.
Which subreddits and platforms does it cover?
It scans the subreddits relevant to your app's topic plus X, rather than a fixed list you maintain. As it learns what your app does, it widens or narrows where it looks, so coverage follows your niche.
Is it free?
You can start for free and set up your first scan without a credit card. Create an account to run your first daily feed and reply to threads.
Keep going
More of the ReachFront toolkit
Idea Validator
Gauge real demand for an idea before you build it, using the same conversation signals.
Learn moreKeyword Rank Checker
See which apps rank for any keyword in the App Store and Google Play, live.
Learn moreASO Score Checker
Audit your store listing and get a 0–100 score with actionable fixes.
Learn moreFind your app's audience today
Create a free ReachFront account and get your first daily feed of warm Reddit and X threads to join.
Try it out now