FOR FOUNDERSNo marketing team needed

Grow on Reddit and Xwithout living on them.

People on Reddit and X are asking for a product like yours right now. Stoppr finds them every morning, drafts the replies that bring them to you, and makes UGC videos and memes to post on Instagram. Five minutes of approving, and nothing goes out without your yes.

  • 7-day free trial
  • No card needed
  • Ready in 60 seconds

One growth agent for every kind of startup

  • Indie hackers
  • SaaS startups
  • Mobile apps
  • DTC brands
  • Local services
  • Agencies

Channels

One agent, every place your buyers are.

Also in Fastlane

  • Meta AdsStatics & carousels
  • InstagramReels & feed
  • TikTokUGC-style video
  • YouTube ShortsShort-form

Only in Stoppr

  • RedditLeads & replies
  • XAccount growth
  • GoogleAI Overviews
  • ChatGPTAnswer citations
  • PerplexityAnswer citations

Fastlane stops at paid social. Stoppr also works the threads and answers buyers trust. See the comparison

Why Stoppr

You didn't start a company to write Reddit replies at midnight. Stoppr finds the threads, makes the UGC and the ads, and queues it all for one five-minute yes. You get back to building.

Who it's for

Built for founders who'd rather be building.

No growth team, no agency budget, no spare evenings. Stoppr does the work of a content marketer, a UGC creator, a community manager and a media buyer. You spend five minutes a morning saying yes.

  • Indie founders and solo builders

    You ship the product. Stoppr finds the people asking for it on Reddit and X, drafts the replies and writes the build-in-public threads, so growth stops eating your evenings.

    Tomorrow, 9:00 am · about 5 minutesApprove all
    • 3 replies in r/SaaS and r/indiehackers
    • Build-in-public thread: week 12
    • 2 UGC videos for the launch
    • Answer to "best tools for solo founders"
    • Reddit replies
    • X threads
    • Launch videos
  • SaaS startups

    Get recommended where buyers research tools: Reddit threads asking for alternatives, X replies, and the answers ChatGPT and Perplexity give.

    • Reddit leads
    • AI answers
    • X replies
  • Mobile apps

    UGC-style TikToks, Reels and Shorts that look native to the feed, plus app-install ads. A fresh batch every morning.

    • UGC video
    • Shorts
    • Install ads
  • DTC and e-commerce

    Statics, carousels, UGC and memes for Meta and TikTok, remixed from whatever sold last week.

    • UGC ads
    • Memes
    • Carousels
  • Local and service businesses

    Show up when people nearby ask Reddit, Google or ChatGPT who to hire, with short videos that make a small team look established.

    • Local subreddits
    • AI Overviews
    • Short video
  • Agencies

    Run every client from one queue: a separate brand memory for each, white-label reports and seats for your team.

    Acme SkincareMendoNorthwindKettleParcel+10 more
    • Up to 15 brands
    • White-label reports
    • Team seats
  • Something else?

    If your customers talk online, Stoppr can grow it. Paste your link and see your first batch in about a minute.

    Try it on your site

UGC & creative

UGC and ads that look native. Every morning.

UGC-style video, statics, memes and carousels for TikTok, Reels and Meta, built from what's winning in your niche. No creators to brief, no editor to chase.

Samples for Acme Skincare
  • Amber dropper serum bottle in warm window light
    MetaApproved
    “Three ingredients. Zero fragrance.”Static adVariation 3 of last week's winner
  • Creator filming a selfie video in her bathroom, holding up a jar of Acme cream and laughing
    TikTokToday 9:00 am
    “POV: your barrier finally stopped screaming.”UGC video· 0:14Hook from a top r/SkincareAddiction thread
  • Exhausted woman in a bathrobe on the bathroom floor, surrounded by a dozen skincare bottlesmy routine last year
    The same woman, calm and smug, holding a single Acme jar to her cheekmy routine now
    InstagramApproved
    MemeFormat trending in your niche this week
  • Flat lay of an Acme gel cleanser, serum and cream on lilac paper
    InstagramWed 12:30 pm
    “The whole routine. Under $70.”Carousel· 1/5Remix of a competitor's best-performing ad
  • Hand pumping clear Acme gel onto the back of the other hand against a lime backdrop
    YouTubeToday 6:00 pm
    “Day 1 vs day 7. No filter.”Short· 0:09Scheduled for peak hours

Every card is a draft until you approve it. Edit the hook, swap the format, or skip it.

Beyond paid social

Ads get attention. Conversations get trust.

Most growth tools stop at ads. Reddit, X and AI answers are where people ask what to buy, so Stoppr gets your startup into those conversations too.

Reddit leads

Find buyers asking for you, today.

High-intent threads, scored and paired with a reply that sounds like a founder, not an ad.

Threads worth answering · today
  • Moisturizer for sensitive skin that isn't greasy?r/SkincareAddiction · 2h · 48 comments· reply draftedIntent score 94
  • Fragrance-free brands that actually work?r/30PlusSkinCare · 5h · 31 commentsIntent score 88
  • Routine under $70 for a reactive barrierr/AsianBeauty · 9h · 22 commentsIntent score 81
  • What finally fixed your redness?r/Skincare_Addiction · 1d · 104 commentsIntent score 72
X growth

Grow your account while you build.

Reply targets with reach, post ideas from what's working in your niche, approved in one tap.

Glow Report@glowreport · 38m41k

Which skincare brand actually lives up to the hype?

Draft reply · @acmeskin

The boring ones. Short ingredient list, no fragrance, no 12-step routine. Your barrier will thank you.

ReplyEditEst. reach 2.1k
4 more reply targets queued for today
AI search visibility

Be the answer ChatGPT gives.

See which prompts mention you, and which threads the answers are built from.

“best fragrance-free moisturizer”
  • ChatGPTMentioned #2 of 5
  • PerplexityMentioned #1 of 4
  • Google AI OverviewsMentioned #3 of 6
  • GeminiNot yet
Top source: your reply in r/SkincareAddiction
API & MCP, on every plan

Run your growth from Claude, ChatGPT or Cursor.

Ask ChatGPT, Claude or Cursor what to post and who to reply to. It calls Stoppr and queues the drafts. Pipe leads to Slack, your CRM or a webhook.

ChatGPT Stopprconnected

What should Acme post today? Draft replies for the best Reddit threads.

Called Stopprtoday
Called Stopprthreads.find

Acme has 6 drafts ready. These four are the strongest, ranked by fit:

  • Fragrance-free moisturiser that doesn't sting?r/SkincareAddiction · reply drafted94
  • Barrier wrecked after retinol, what helped you?r/30PlusSkinCare · reply drafted88
  • 5 things I stopped putting on sensitive skinX thread · reply drafted81
  • "I tried 9 moisturisers so you don't have to"TikTok script · script written79

Want me to queue all six for your approval?

Yes, queue them.

Called Stopprbatch.queue

Queued. They're waiting in Stoppr. Nothing posts until you approve.

Ask anything
  • Claude
  • ChatGPT
  • Cursor
  • Slack

In practice

One brand. Four channels. Zero busywork.

The same brand memory drives every channel, so an ad hook that wins on TikTok shows up in tomorrow's X thread.

Ads that learn from last week.

Stoppr studies your best performers and your competitors' winners, then ships fresh variations every morning.

  • Statics, UGC-style video, memes and carousels
  • Meta, TikTok, Instagram and Shorts
  • Winners remixed automatically, losers retired
This morning's batch6 ready · 3 shown
Static ad: amber serum bottle in window lightTop 5%
StaticROAS 3.4×
UGC video ad: a creator holding an Acme serum in a sunlit bedroom
UGC videoHook rate 41%
Carousel ad: Acme cleanser, serum and cream on lilac paper
CarouselCTR 2.8%
Remixed from last week's winnerSame hook, new opener and colourway

How it works

Paste a link. Approve a batch. Watch it compound.

Setup takes a minute. After that, Stoppr does the hunting and drafting, and you spend five minutes a morning saying yes.

  1. In 60 seconds

    Learn

    Stoppr reads your site, competitors, reviews and the threads in your niche, then builds a brand memory and audience map.

    acmeskin.com84%
    • Read 42 pages
    • Found 6 competitors
    • Mapped 18 subreddits
    • Building brand memory
  2. Every morning

    Create & engage

    Ads and posts to approve, plus the Reddit and X conversations worth joining, drafts included. One pass, over coffee.

    Today · 19 to approveApprove all
    • Reply in r/SkincareAddictionApproved
    • 3 static ad variationsApproved
    • Thread: reading the labelWaiting
    • UGC video, 0:14Waiting
    • Meme for ThursdayWaiting
  3. Every week

    Compound

    ROAS, hook rate, replies and AI citations feed the next batch. Winners get remixed across channels; losers get retired.

    Weekly reach, all channels
    214k
    +38%
    ROAS2.1 → 3.4×
    Replies+61
    AI cites1 → 3

Your first batch is ready about a minute after you paste your link.

Paste your link

Safety & control

Nothing posts without your yes.

Stoppr drafts, you decide. What goes out follows the rules of the place it lands and the rhythm of a real person.

You approve everything

Every reply, post and ad lands in a queue first. Approve it and Stoppr publishes from your account, or copy it and post it yourself. Auto-posting stays off unless you turn it on.

Follows each subreddit's rules

Stoppr reads a sub's sidebar and posted rules before it drafts. No links where links are banned, and a disclosure wherever you work on the product.

No links in first replyDisclose affiliationNo DMs

Posts at a human pace

Approved replies go out in natural gaps through your working day, capped per account. Never a burst of twelve comments in a minute.

Watches account health

Karma, removals and visibility are checked every day. If anything dips, Stoppr pauses that account and tells you why.

u/acme_jessHealthy
@acmeskinHealthy

No fake accounts. Ever.

Stoppr only works through accounts you own and connect. No sockpuppets, no bought upvotes, no networks of bots talking to each other.

Connected with OAuth · revoke any time

Stoppr vs Fastlane

Every channel your customers use. One agent.

Stoppr makes the same ads and videos, then keeps going: into the Reddit threads, X replies and AI answers where buyers decide.

Stoppr and Fastlane features compared
FeatureStopprFastlane
Paid social
Brand profile from one URLIncludedIncluded
AI ads & short-form videoIncludedIncluded
Meta, TikTok, Instagram, ShortsIncludedIncluded
Beyond paid social
Reddit lead finding & reply draftsIncludedNot included
X account growthIncludedNot included
Google & AI-answer visibilityIncludedNot included
Platform
API & MCP serverIncludedIncluded
Starting price$10/mo$29/mo

Switching from Fastlane?

Paste your site and Stoppr rebuilds your brand profile in about a minute. Bring your best-performing ads and it starts from those.

Start your switch

Based on Fastlane's public website, October 2026. Fastlane is a trademark of its owner.

Pricing

Less than one freelancer. Every channel included.

Every plan starts with a 7-day free trial and every channel. UGC is reduced to 200 credits during the trial; the rest of your plan's credits arrive with your first payment.

Lite

For trying Stoppr on one product, a little each day.

$10/ month

Or $8/mo billed yearly

Start free trial

1 brand · 200 credits

  • 5 Reddit leads a day
  • 1 X account
  • Memes and reels
  • Scheduled posting

Starter

For solo founders finding their first customers.

$19/ month

Or $15/mo billed yearly

Start free trial

1 brand · 600 credits

Everything in Lite, plus:

  • 15 Reddit leads a day
  • Tracked links and signups
  • 5 AI prompts tracked
  • API & MCP server

Growth

Most popular

For startups turning Reddit, X and UGC into a real channel.

$49/ month

Or $39/mo billed yearly

Start free trial

3 brands · 2,500 credits

Everything in Starter, plus:

  • 50 Reddit leads a day
  • 3 X accounts
  • 25 AI prompts tracked
  • Competitor ad remixes
  • Slack & webhook alerts

Scale

For teams running several products at full speed.

$99/ month

Or $79/mo billed yearly

Start free trial

6 brands · 5,000 credits

Everything in Growth, plus:

  • 150 Reddit leads a day
  • 6 X accounts
  • 50 AI prompts tracked
  • Priority generation

Agency

For agencies running growth for many clients.

$199/ month

Or $159/mo billed yearly

Start free trial

15 brands · 10,000 credits

Everything in Scale, plus:

  • 300 Reddit leads a day
  • 15 X accounts
  • 100 AI prompts tracked
  • White-label reports
  • Team seats

14-day money-back guaranteeCancel anytime in one clickPrices in USD

Compare every feature
Plan features compared
FeatureLiteStarterGrowthScaleAgency
Usage
Brands113615
Credits a month2006002,5005,00010,000
Reddit leads a day51550150300
X accounts113615
AI prompts trackedNot included52550100
Features
Reddit and X reply draftsIncludedIncludedIncludedIncludedIncluded
Approval queue and browser extensionIncludedIncludedIncludedIncludedIncluded
Scheduled postingIncludedIncludedIncludedIncludedIncluded
Ads, UGC video and memesIncludedIncludedIncludedIncludedIncluded
Tracked links and signupsNot includedIncludedIncludedIncludedIncluded
API & MCP serverNot includedIncludedIncludedIncludedIncluded
Competitor ad remixesNot includedNot includedIncludedIncludedIncluded
Slack & webhook alertsNot includedNot includedIncludedIncludedIncluded
Priority generationNot includedNot includedNot includedIncludedIncluded
White-label reportsNot includedNot includedNot includedNot includedIncluded
Team seatsNot includedNot includedNot includedNot includedIncluded

FAQ

Questions, answered.

The things founders ask before they paste their link.

Stoppr is built so it doesn't. Every reply is written for its thread, checked against that subreddit's rules and posted at a human pace from your own account, and only after you approve it. No vote games, no fake accounts, no link-dropping.

No. Everything lands in your approval queue first. Approve it and Stoppr publishes, or copy the text and post it yourself. Auto-posting stays off unless you turn it on.

Wherever your buyers already talk. Stoppr maps the communities in your niche when you paste your link, and you choose which to watch. Add or block any subreddit at any time; Stoppr stays out of communities whose rules ban brand participation.

Yes. Connect your Meta, TikTok and YouTube ad accounts and approved ads launch there, so spend, billing and performance data stay in accounts you own.

Yes. B2B buyers ask Reddit, X and ChatGPT for recommendations long before they book a demo. Stoppr finds those threads and tracks those answers, and you can keep ads light if they don't fit how you sell.

Both create and launch ads and short-form content from your brand. Stoppr also finds buyers on Reddit, grows your X account and tracks whether Google and AI answers recommend you, all from the same brand memory.

Yes. Paste your website and Stoppr rebuilds your brand profile in about a minute. Bring your best-performing ads and it uses them as the starting point.

Everything goes through an approval queue. Edit, reject or approve a whole batch at once, and set the claims Stoppr must never make.

Yes. Stoppr's MCP server lets Claude, Cursor, VS Code or any MCP client pull today's batch, export leads and approve drafts without opening the app. Approved replies still go out from your own browser.

Pick a plan or your account pauses. Nothing is charged unless you choose to continue, and you can cancel any time from settings.

Stop juggling.
Start growing.

Paste your website. Your first batch of Reddit replies, X posts and UGC ads is ready before your coffee is.

7-day free trial · No card neededBook a demo