42% of startups die for ONE reason.
Not the code. Not the team. Nobody wanted it. DemandSonar finds that out in 90 seconds, so you only build things people are already asking for.
01 / What you getEverything you need to find your customers
Real demand, proven
We pull actual posts where people describe your problem, with dates and links. No hallucinated 'desperate audience.'
Competitor teardown
Your top competitors from the web and Google Maps, what they do right, and the exact openings to beat them.
Their reviews, mined
We read your competitors' real reviews and hand you the recurring complaints you can win on.
The offer, written for you
A grand-slam offer built on the value equation, ready to copy and send today.
Who to contact, and where
The exact people to reach first, the channels ranked by signal, and the tools to build and clean your list.
A 90-day daily plan
What to do tomorrow at 9am. Rule-of-100, plus pass or fail experiments so you never burn a quarter.
02 / The methodHow it works
Tell it what it is
Pick local or online, drop your idea and city. A sentence is enough.
We do the digging
Real demand mining, live competitor and review analysis, and benchmarks for your exact niche.
You get the plan
ICP, the offer, who to contact, the channels, the daily plan. Download it. Then go get customers.
Sample dossierThis is what you get
11:00 reply to “need a plumber” posts
17:00 ask every customer for a review
Case filesReal verdicts, physical and online
Plumbing business · Houston, TX
All 10 competitors get hammered for surprise fees (88% of bad reviews). The winning wedge: a flat price texted before the job starts.
Field notesFounders who stopped guessing
“I was three weeks from building the wrong thing. It showed me 40 real posts proving nobody wanted my first idea. Saved me a year.”
Solo founder · Austin, TX
“The competitor teardown alone was worth it. It read thousands of reviews and showed me exactly where the incumbents were weak.”
Agency owner · Toronto
“The offer it wrote is the one I still use. Booked 6 calls in my first week of outreach.”
Freelancer · Denver, CO
“It pulled my top 10 competitors off Google Maps and showed me the one thing they all get wrong. Game over.”
Home services · Phoenix, AZ
“Finally an idea checker willing to say NO. It told me my idea was a red ocean and why. Brutal and correct.”
Indie hacker · Lisbon
“Stopped guessing my channels. It told me the exact subreddits my buyers were in. First paying customer in 9 days.”
Bootstrapper · London
AccessSimple pricing
Validate free. Go all in when you are ready.
- Just enter your email
- Real demand verdict + score
- Your perfect ICP
- The offer to lead with
- Channels + 90-day daily plan
- Everything in Free, plus:
- Deep Research on every idea
- Top competitors torn down
- Real review check + complaint mining
- Google Maps for local businesses
- Industry benchmarks, researched
- Lead sources, tools + list cleaning
- Niche monitoring + lead export
- Download the full PDF
QuestionsFrequently asked
What is DemandSonar?
DemandSonar is a tool that tells you whether anyone actually wants your business idea. It mines real demand, tears down your competitors and their reviews, and hands you the people to contact, the offer to use, and a daily plan.
How does DemandSonar validate a business idea?
It pulls real posts where people describe your problem, finds your top competitors from the web and Google Maps, reads their reviews to find recurring complaints, and scores the opportunity. Every claim is tied to a real source, not a guess.
Is the free scan really free?
Yes. The free scan gives you a demand verdict, a score, your ideal customer, the offer to lead with, and a starter plan. You only enter your email. No card required.
What is the difference between the free scan and Pro?
Pro is 29.99 dollars a month and adds Deep Search: your top competitors torn down, their real reviews mined into complaints, Google Maps for local businesses, researched industry benchmarks, lead sources and tools, and a downloadable report.
Where does the data come from?
Real Reddit demand, live web search, Google Maps for local businesses, and real customer reviews. The frameworks are grounded in the playbooks of Alex Hormozi, Daniel Priestley, and Steve Blank.
How long does a scan take?
A free scan takes about 90 seconds. A deep scan takes a couple of minutes because it goes and researches your competitors and their reviews live.
Can DemandSonar validate a local business?
Yes. Pick local business and add your city, and it searches Google Maps for your real local competitors, reads their reviews, and tailors the plan to your area.
LearnGuides to get you started
Get a validated idea every week
One real, demand-checked business idea in your inbox each week, with where the customers are and the offer to lead with. Free, forever.