Arena — Find Your First Customers When You Have Zero Feedback
Arena is a customer discovery and competitive intelligence platform for early-stage founders. It searches five platforms — X, Reddit, Hacker News, LinkedIn, and Product Hunt — for people actively complaining about the exact problem your startup solves. Each lead gets a fit score from 0 to 100 and a personalized outreach message written in the founder's voice. Arena's Competitor Radar works like an intelligence service for your competitive landscape. It discovers competitors across the same five platforms, scores each threat from 0 to 100, then monitors them around the clock. Hourly website crawls detect pricing changes, feature launches, team hires, redesigns, and new entrants. Every change is classified by severity (critical, important, or minor) and delivered to a real-time intel feed. When a competitor makes a move, one click generates a counter-move spec ready for Claude Code or Cursor. As the founder grows and feedback starts flowing, Arena connects to Slack, Linear, PostHog, Notion, and Jira, auto-classifying every signal into pain points, feature requests, bug reports, positive feedback, and analytics insights. Arena's Hijack feature converts competitor customers. Select any competitor, and AI agents search all five platforms for people who use that product and express frustration. Each lead receives a switch score (0–100) based on verified usage (40%), frustration signal (25%), reachability (20%), and switch readiness (15%). Leads are enriched with contact information and a personalized switching message referencing their specific complaint.
“Talk to your customers.” What customers?
You have zero feedback, zero customers, and a product nobody's tried yet. Arena searches X, Reddit, HN, LinkedIn, and Product Hunt for people actively complaining about the exact problem you're solving — writes a personalized DM in your voice, and sends it for you. You wake up to replies.
You're building alone. No feedback. No signal. No idea if anyone cares.
Every startup advisor says the same thing: talk to your customers. But you don't have customers yet. You're shipping features into silence, guessing what matters, and Googling your competitors hoping you didn't miss anyone. The hardest part of starting up isn't building the product. It's finding the first 10 people who desperately need it.
Reddit“Does anyone know a tool that does this automatically? I've been doing it manually for months and it's killing me”
r/startups·6h
X“Just spent 3 hours researching competitors. Found 3. Probably missing 10.”
HNShow HN: We're building [competitor] — launching next week
“I have no idea if anyone actually needs this. I've been building for 3 months and haven't talked to a single potential customer. I don't even know how to find them.”
Your first customers are out there.
You just haven't found them yet.
From zero customers to your first 10. Four steps.
Describe your startup
Tell Arena what you're building and what problem you solve. One paragraph is enough. Arena uses this to search for the right people and the right competitors.
Find and reach your first customers
Arena searches 5 platforms for people with your exact problem, scores each lead, and writes a DM that sounds like you typed it yourself. Warm, human, from your voice. Sent from your X account. You just wait for replies.
Know your arena
Discover competitors you've never heard of — including ones that just launched. Arena tracks their website changes, pricing updates, and feature launches. When a competitor ships something new, Arena suggests a counter-move and writes the spec.
Build what matters
Your early adopters told you what hurts. Your competitors showed you what works. Arena writes a complete spec — ready for Claude Code or Cursor — grounded in real evidence, not guesses.
Sarah Chenu/sarahchen_pm"Does anyone know a tool that tracks competitor launches automatically? I've been manually checking Product Hunt and HN every morning and it's killing my productivity."
Early Adopter Finder
Your first customers are out there. Arena finds them and reaches out in your voice. Not AI slop. Real founder energy.
Arena searches five platforms for people actively describing the exact problem your startup solves. Each lead gets a fit score from 0 to 100. Then Arena writes a DM that sounds like you actually typed it on your phone. Warm but not cringe, confident but not cold, caring but not a therapist. Sent from your X account automatically. You wake up to replies.
5 platforms
X, Reddit, Hacker News, LinkedIn, Product Hunt. Searched in parallel for people with your exact problem.
Fit-scored
Each lead gets a 0–100 score based on how closely their problem matches what you're building.
Your voice, not AI slop
Every DM sounds like you typed it yourself. Warm, human, real. Sent from your X account. No templates, no "I'd love to connect" cringe.
Rivaltrivalt.ioDirect competitor — same problem, launched 2 weeks ago
Dropped Pro tier from $49 to $29/mo
Competitor Discovery
You Googled your competitors. You found 3. There are 12 more.
Arena scans five platforms for competitors you've never heard of — including ones that just launched on Reddit and Hacker News this week. Each gets a threat score and an AI-written explanation of why they matter. Found them? Track them. Arena's Radar takes over from here.
5 platforms
X, Reddit, Hacker News, LinkedIn, Product Hunt. Competitors you'd never find on Google.
Threat scored
Every competitor gets a threat score from 0 to 100 with an AI-written explanation of why they matter to you.
Track & monitor
One click puts a competitor on your Radar. Arena takes over from there — scanning around the clock.
Competitor Radar
Nothing enters your airspace without Arena knowing.
Think of it as an intelligence service for your competitive landscape. Arena continuously monitors every tracked competitor — their websites, pricing pages, feature lists, team pages, and social accounts. Every change is detected, classified by severity, and delivered to your intel feed the moment it happens. When they make a move, you make the counter-move.
Rivalt dropped all plans by 40%
Starter now $12/mo (was $20), Pro $36/mo (was $60). Likely responding to new market entrants.
Specwright launched AI-generated PRDs
New "AI Spec Writer" page detected — generates PRDs from user feedback. Direct feature overlap.
FeedLoop closed $4M seed round
Posted on X: "Excited to announce our $4M seed led by Sequoia." Hiring engineers.
New competitor detected on Product Hunt
"BuildRadar" — 180 upvotes today, targeting startup founders with competitive intelligence.
24/7 scanning
Hourly website crawls detect pricing changes, feature launches, redesigns, team hires, and more. Nothing slips through.
Classified by severity
Critical, important, or minor. Pricing drops and feature launches surface first. Blog typos don't waste your time.
Full intelligence feed
Filter by competitor, category, or severity. Each change includes evidence quotes, impact analysis, and source links.
One-click counter-move
Competitor shipped something new? One click generates a feature spec with competitive context, ready for Claude Code or Cursor.
Hijack
Their users are already frustrated. Go get them.
Pick any competitor. Arena's AI agents search five platforms for frustrated users — complaints, pricing rage, migration posts. Each lead is scored on switch readiness and gets a message that sounds like you, the founder, personally reaching out. Not a template. Not AI slop. A real conversation starter.
"Mixpanel's funnels are broken half the time. Spent 3 hours debugging a simple conversion report. This is an $800/mo tool."
5 platforms
X, Reddit, Hacker News, LinkedIn, Product Hunt. Searched in parallel by AI agents for frustrated competitor users.
Switch scoring
0–100 score combining verified usage, frustration signal, reachability, and switch readiness. Highest-intent leads surface first.
Your voice, not a template
Every message sounds like you typed it yourself. Warm, real, referencing their actual frustration. Sent from your X account.
Automate the hunt
Schedule runs every 6 hours to weekly. New frustrated users surface automatically. Never miss a conversion window.
PainRequestsBugsPositiveAnalyticsDashboard navigation too complex, users can't find active experiments
sarah.chenin#product-feedback·3dExport data to CSV from analytics view
Engineering·1dOnboarding flow drops 34% of users at step 3
·7dAPI documentation quality praised by multiple developers
mike.rin#general·12hAs You Grow
When the feedback starts flowing, Arena catches every signal.
Once your early adopters start talking, connect Slack, Linear, PostHog, Notion, and Jira. Every pain point, feature request, and bug gets auto-classified and linked to what your competitors are doing. The patterns that should drive your next decision, not another inbox to triage.
Cross-source themes
Same pain point in Slack, a ticket, and a call. Linked automatically.
Severity, not volume
Weighted by impact and frequency, not who shouts loudest.
Decision-ready context
Every pattern traces back to real evidence you can cite.
Connects to
SlackLinearPostHog
NotionJiraSlackLinearPostHogNotionJiraSlackLinearPostHogNotionJiraSlackLinearPostHogNotionJiraFrequently asked questions
Arena is your first AI teammate. It finds your first customers by searching X, Reddit, HN, LinkedIn, and Product Hunt for people with your exact problem, scores each lead, and writes a DM that sounds like you actually typed it. Not AI slop, not a template. Your voice, your warmth. Sent from your X account. It also discovers competitors, monitors them 24/7, and generates specs ready for Claude Code or Cursor.
Key Takeaways
Arena finds your first customers — it searches X, Reddit, Hacker News, LinkedIn, and Product Hunt for people actively complaining about the problem your startup solves. Each lead gets a fit score (0–100) and a DM that sounds like you typed it yourself. Not AI slop. Your voice, your warmth.
Competitor Radar discovers competitors you've never heard of across 5 platforms, then monitors them 24/7. Think of it as an intelligence service for your competitive landscape — website crawls detect pricing changes, feature launches, team hires, and new entrants. Every change is classified by severity and delivered to your intel feed. When a competitor makes a move, one click generates a counter-move spec.
Hijack converts competitor customers. Select a competitor, and AI agents search 5 platforms for frustrated users. Each lead gets a switch score (0–100) based on verified usage, frustration signal, reachability, and switch readiness — plus a personalized switching message.
Build what matters — your early adopters told you what hurts, your competitors showed you what works. Arena writes a complete spec — ready for Claude Code or Cursor — grounded in real evidence, not guesses.
Signal Stream — as you grow, connect Slack, Linear, PostHog, Notion, and Jira. Every pain point, feature request, and bug auto-classified. Patterns surface from across all sources.
One paragraph is enough — describe your startup and what problem you solve. Arena handles search, scoring, monitoring, outreach, and specs.
Your competitors already found their first customers. Your turn.
Describe your startup. Arena finds the people who need it, the competitors you're missing, and writes the spec. Start with a free trial.