See what's already selling — before you spend a single euro on ads.
Kairós Sonar gathers the Facebook and Instagram ads in your niche and puts the ones that are scaling at the top: how many days they've been running, how many people they've reached, how fast they grow each day and where they lead.
Free sign-up · no card · no commitment · no auto-renewal
The most expensive mistakes of people who sell with ads.
None of them come from lack of effort. They're decisions made without seeing what the market is already showing.
The product nobody wanted
You put €100, €200 into ads to find out what the market already knew: it doesn't sell.
Cost: the whole test budgetThe false winner
You copied an ad that looked like a success. It had been running for 3 days — its owner was still testing it.
Cost: following someone who doesn't know yetThe lost night
Ad after ad, no order, no reach, no idea which one matters. At 3 a.m. you still hadn't decided anything.
Cost: hours you won't get backThe wrong market
What blows up in one country arrives in yours late, expensive or never. Every country buys differently — and you need to see yours.
Cost: copying another country's timingThe saturated product
You jumped into a product with dozens of stores running the same video — and only noticed from the cost per click.
Cost: competing on price aloneThe creative that disappeared
You saved the video link to study tomorrow. Tomorrow it wouldn't open.
Cost: your best reference, lostKairós Sonar cuts out these six mistakes before you spend your first euro.
This isn't a promise. It's the screen.
Real recordings of the dashboard — search, signals, reach, advertisers and creatives. Exactly what you'll have in front of you.
Zoom in on the signals
Days running, position by impressions, active ads, versions and reach — at a glance. One click and you see who saw the ad, by age and gender.
- Winners rise to the top on their own
- Age and gender chart on every ad
Sort by who's winning
Most days running, biggest reach, fastest growth: change the order and the market rearranges itself in front of you.
- Strength, days running, reach and growth
- Filters by format and by time running
Find out who's scaling
The advertisers with the most active ads, running the longest and with the most reach — and, in one click, every ad from each of them.
- How many advertisers are already on the product
- Spy on the whole advertiser
Watch the creative play
The video plays right there and stays saved: rewatch the hook, the angle and the offer whenever you want — and download it to study.
- Creatives saved, even after they stop running
- Where it leads: store, form, WhatsApp
“Nobody pays for months on end for an ad that doesn't sell.”
When someone keeps an ad running for 90 days, multiplies it into versions and opens more ads on the same page, they're showing you it makes money. Sonar reads those signals for you and turns them into a score from 0 to 100: Strength. Winners rise to the top; tests stay at the bottom.
Eight signals. One screen.
Everything you need to decide whether a product is worth your money — side by side, on every ad.
How long the advertiser keeps it live. Three days is a test; ninety is a business.
The most-shown ads in your niche, in the order they appear most.
How many active ads the same page is running at once — whoever duplicates has margin.
The same ad in several versions is an ad being multiplied across ad sets.
How many people saw the ad plus the age and gender chart — on every ad, no clicks needed. You know who it's selling to.
How many new people the ad reaches each day. That's how you catch who's accelerating today — before everyone else.
Store, form, WhatsApp, Messenger or app — the competitor's full funnel, with the link to see the offer.
The video and image stay in Sonar even after the ad stops running. Rewatch the hook whenever you want and download the video to study.
In minutes you know where to put your money.
Sonar doesn't just give you a list — it shows you what each result means.
85 days running · #1 in impressions · 30 active ads
The most-shown video in the niche, running for almost three months, with the brand multiplying ads. It's not a test: it's a product making money. Study the angle and come in with your own.
16 days running · 16 active ads
A store betting big on a new product. It could be the next winner: follow it in Sonar and jump in when the signal is confirmed.
Few advertisers · ads running for months
Proven demand and few people competing for it. That's the combination that matters — and Sonar shows it to you right away in the “Advertisers” tab.
Dozens of stores · the same video
Everyone fighting over the same audience. Come in with a different angle — or pick another product before you pay for the most expensive click.
Physical or digital product, the signal is the same.
Whoever pays to keep an ad running is selling — whether it's a brush, a course or a coaching program.
Online stores and dropshipping
Validate the product before ordering stock or paying for ads. See the price, the angle and the offer of those already selling — and how many are already there.
Digital products
Courses, ebooks, coaching, workshops: see which promises and hooks have been paid for weeks and whether the funnel goes to a sales page, a form or WhatsApp.
Media buyers and agencies
Study each client's competition in minutes, spy on entire advertisers and export everything to Excel.
The most searched niches are already waiting for you.
Sonar searches — and keeps up to date — the niches with the most advertising, physical and digital, all on its own. Open it and see them instantly. And anything else you type, it goes and gets.
Physical productsThree steps. Nothing to install.
No ad accounts to connect, no extensions to install. Open Sonar in your browser and search.
Type the product or niche
“posture corrector”, “nail course”, “air fryer”… and pick the country.
Sonar collects and measures
It gathers the active ads in that niche, with copy, creative, page and destination, and measures the real reach of the most-shown ones.
Decide by strength
Sort by strength, days running, reach or growth. Open the ad, study the hook and spy on the whole advertiser.
It all comes down to your first euro.
Every decision you make blindly today gets a signal behind it.
| Without Sonar | With Sonar |
|---|---|
| You test products blindly | You test what's already selling |
| You copy ads that are still being tested | You see how many days each ad has been running |
| You don't know who's accelerating | You see how many new people it reaches each day |
| You jump into saturated products | You see how many advertisers are already there |
| You guess the audience | You see the age, gender and country of who saw it |
| You lose the best creatives | They stay saved in your dashboard |
| Nights of research | Minutes |
Start for one euro. No commitment.
Creating an account is free. Try 7 days for €1. If you like it, choose a 30-day plan. No plan renews on its own.
7 days to see Sonar working in your niche (Portugal and Spain), with real reach.
Essential
To validate your first products
60 searches
- Portugal and Spain
- Age and gender on every ad
- 5 anunciantes espiados
- Strength 0–100 and filters
- Creatives saved
- Other countries
- Base completa
- Export to Excel
Pro
For those who test every week
250 searches · €0.16 per search
- All countries
- Age and gender on every ad
- 30 anunciantes espiados
- Strength 0–100 and filters
- Creatives saved
- Base completa
- Export to Excel
Elite
For those already selling who want to scale
1,000 searches · €0.05 per search
+€10 more than Pro · 4× the searches- All countries
- Age and gender on every ad
- 200 anunciantes espiados
- Strength 0–100 and filters
- Creatives saved
- Base completa: explore every niche Sonar has already collected
- Export to Excel
Pay inside Sonar by card, MB WAY or Multibanco · the plan activates once the payment is confirmed · prices include VAT where applicable
Free guides, no sign-up.
The method behind Sonar, explained step by step.
Before you start
What is Kairós Sonar?
It's the fastest way to find out what's selling with Facebook and Instagram ads. Type a product or a niche and Sonar shows you the ads that are scaling, sorted by strength: how many days they've been running, how many people they've reached, how fast they grow each day, how many versions the advertiser is multiplying and where they lead.
Does it work for digital products (courses, ebooks, coaching)?
Yes. Type the topic — “nail course”, “coaching”, “recipe ebook” — and see the ads that are scaling, the promise, the hook and where they lead: sales page, form, WhatsApp or Messenger.
Does it work for online stores and dropshipping?
That's what it was built for. The Trial and Essential plans search in Portugal and Spain; Pro and Elite, in every country. You see the creative, the offer, where each ad leads and how many advertisers are already on the same product — before you spend a single euro.
How long until I get results?
The most searched niches are already ready: open them and look. Any other product you type, Sonar goes and gets it, and the results appear in your dashboard on their own within minutes.
Are the videos and images saved?
Yes. Every creative is saved in Sonar: you can keep watching it and download the video to study, even after the advertiser takes it down.
How do I pay?
By card, MB WAY or Multibanco, right inside Sonar, no credit card needed. The plan activates as soon as the payment is confirmed.
Am I locked into a plan?
No. No commitment and no auto-renewal: every plan lasts 30 days (the Trial lasts 7) and you renew if and when you want.
Which plan should I start with?
The Trial: 7 days for €1 to see Sonar working in your niche. If you're already selling and want to scale, go straight to Elite, with the full database and export to Excel.
Your next product is already being advertised by someone. See it first.
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