Your competitors
are launching.
Are you finding out first?
Spire21 monitors Reddit, Hacker News, and Product Hunt in real-time — and automatically discovers new competitors before they gain traction. Slack alerts in minutes, not days.
Not a one-time check. A quiet, persistent radar that runs while you build.
Free during beta · No credit card · 5-minute setup
NoteFlow AI launched — 284 upvotes, #2 of the day
"Best AI note-taking apps?" — your competitor mentioned 14 times
Show HN: We built a direct alternative — 47 comments
"Tools I use for X" — 3 alternatives mentioned, none are you
Why this exists
I built two apps
no one needed.
— The founder
The first was a YouTube note-taking app — AI-powered, timestamped references for learners. I thought it was original. I spent weeks on it. Then I went looking for competitors properly and found several already doing exactly the same thing. I just hadn't known what to search for.
So I started again. Built a holistic health tracking app. This time I did some research upfront. Checked a few Google results. Felt confident. Then went heads-down for two months.
When I finally surfaced, I found a Reddit thread listing twelve alternatives. The App Store had more. One was backed by Walmart.
The problem wasn't that I didn't do research. It was that I did it once, at the start, with the wrong keywords — then stopped entirely while the market kept moving.
The tools that should have helped
Arrives 24–72 hours late — if at all. No Reddit. No Product Hunt. No community conversations. Just news articles you didn't ask for.
You check once and feel covered. Meanwhile, a competitor launches Tuesday, hits #2 on Product Hunt, and you find out Friday from a prospect who already signed up with them.
Crayon and Klue are built for sales teams with $2,000/mo budgets and dedicated competitive analysts. Not for the founder who is building, marketing, and selling alone.
Spire21 is what I wish I'd had. Not a one-time check. Not a $500/mo enterprise dashboard. A quiet, persistent radar that runs while you build.
A different kind of intelligence
Stop reacting. Start anticipating.
Every other CI tool tells you what already happened. Spire21 is built to show you what's happening now — and find threats before they find you.
Google Alerts is basically useless for this. Crayon costs $2,000/mo. There's finally something in between.
The old way
Reactive intelligence
Google Alerts, manual checks, F5Bot
You find out when a competitor launches after it already happened — from a Reddit comment, a customer mention, or an investor who saw it first.
Always behindThe Spire21 way
The Anticipation Engine
Real-time monitoring + discovery
Spire21 watches every platform continuously and automatically surfaces new competitors before they gain traction. You see it coming. You respond before your customers notice.
Always aheadWhat you're not paying for
Enterprise CI
Crayon, Klue, Kompyte
Sales call required. $500–$2,000/mo. Onboarding takes weeks. Built for dedicated competitive intelligence teams — not the founder doing everything alone.
Not for youHow it works
5 minutes to set up. Zero to maintain after that.
No demo required. No onboarding call. No procurement process. Describe what you're building — Spire21 handles everything else.
Describe what you're building
Plain language. No code, no API keys, no demo call. Add keywords and any competitors you already know. Done in under 5 minutes.
We watch while you build
Spire21 scans Reddit, Hacker News, and Product Hunt around the clock — surfacing new competitor launches, mention spikes, feature requests, and "I built this" posts in your market.
You find out first
A daily digest every morning. Real-time Slack alerts when something urgent surfaces. AI strips the noise — you only see what actually matters. No login required to stay in the loop.
What you get
Not a one-time check. Always on.
A quiet, persistent radar. No complex dashboards. No 40-step onboarding. No demo call. Set it up in 5 minutes and forget it exists — until it matters.
Competitor Discovery Engine
Only on Spire21Every other CI tool only tracks competitors you already know about. Spire21 monitors Product Hunt launches, Show HN posts, Reddit “I built this” threads, and YC announcements — then uses AI to classify anything entering your market by threat level. You don't just track known competitors. You find the ones you don't know about yet.
Real-time Slack alerts
When a competitor launches or mention spikes, a Slack ping reaches you immediately. No dashboard check required. Stay in flow, stay informed.
Multi-platform feed
Reddit, Hacker News, and Product Hunt — all in one chronological feed. Not single-source. Not 80% of the picture. Everything.
AI signal filtering
Raw platform data is noisy. Spire21 surfaces only what's actually relevant — not every tangential Reddit comment or keyword coincidence.
Continuous monitoring
Runs 24/7 from the moment you add a project. Not a one-time snapshot. A persistent radar. The market keeps moving while you code.
Daily digest email
One email each morning summarising what Spire21 found overnight. Read it with your coffee. No login, no context switching.
5-minute setup
No code. No API keys. No demo call. Describe your idea, add keywords, connect Slack if you want it. Monitoring starts immediately.
Pricing
No sales calls. No enterprise contracts.
Transparent pricing you can act on without talking to anyone.
Starter
For founders validating ideas who want to stop checking Reddit manually every morning.
Join waitlist- 3 competitors tracked
- Reddit + Hacker News + Product Hunt
- Competitor discovery (1 category)
- Daily digest email
- AI-filtered results
Growth
For founders building seriously who need real-time awareness and competitor discovery across every platform.
Join waitlist- 10 competitors tracked
- All platforms + Twitter / X
- Competitor discovery (3 categories)
- Real-time Slack alerts
- Sentiment analysis
- AI-filtered results
Pro
For technical founders and small teams who want to pipe intelligence into their own tools.
Join waitlist- 25 competitors tracked
- All platforms + LinkedIn
- Competitor discovery (unlimited)
- Real-time Slack alerts
- API access
- Team seats (up to 5)
- Priority support
All plans include a 7-day free trial at launch · No credit card required to join the waitlist
FAQ
Common questions.
Early access
Be the founder who sees it coming.
Join the waitlist. Free during beta. Early-bird pricing at launch.
No demo call. No onboarding consultant. No credit card. 5 minutes from signup to your first alert.
Your competitors launched something this week
Some founders are surprised
by their competition.
Some aren't.
Spire21 is the difference. A persistent radar watching Reddit, Hacker News, and Product Hunt — and discovering new market entrants before your customers do.