The ultimate goal of any business is growth, which has led to the rise of an entire industry known as Growth Hacking in the digital space, with a huge market exceeding €360 billion in ad spend on Google and Meta ads alone. That’s why performance is crucial. Unlike traditional marketing, Growth Hacking isn’t about selling services as separate products—it integrates paid advertising, search engine optimization, CRM, lead qualification strategies, and conversion monitoring into a seamless customer journey. Checkgrow promises to create a structured activity list (a “CHECK list”) leading to user growth (“GROWth”).
This article explores the fascinating journey of Checkgrow’s visionary founder, Bruno Mucheroni, originally from Brazil, and how he ended up in Croatia. Unlike traditional marketing, Growth Hacking isn’t about selling services as separate products—it integrates paid advertising, search engine optimization, CRM, lead qualification strategies, and conversion monitoring into a seamless customer journey. Checkgrow promises to create an automated structured activity list (a “CHECK list”) leading to user growth (“GROWth”). This article explores the fascinating journey of Checkgrow’s visionary founder, Bruno Mucheroni, originally from Brazil, and how he ended up in Croatia.
From São Paulo to the World: Bruno’s Journey into Growth Hacking
By the age of 25, Bruno had already built an impressive career. In São Paulo, he was among the first to manage Meta (formerly Facebook) ads for major brands like Nescafé and Fiat. His digital agency grew so rapidly that it was acquired by another large institution, giving him the opportunity to travel the world, share knowledge, expand his expertise, and connect professionals in the marketing and tech industries.
During his travels across Europe, particularly in Eastern regions, he noticed something intriguing—European companies were paying three to four times more for online ads than their American counterparts while achieving weaker results. Determined to change this2visioned leveraging AI to help European businesses achieve higher returns on every euro spent, increasing clicks, customers, and sales.
In 2019, Bruno arrived in Zagreb and was taken aback by what he found.
“In Croatia, I discovered great tech projects with AI capabilities and an impressive technology background that can be compared to Silicon Valley. Yet, no one is marketing them globally in the right way,” he recalls. “I saw an opportunity to combine Croatia’s brilliant ideas and projects with my experience in global digital marketing.”
The Game-Changing Meeting with Qubinets
Everything changed when Bruno met Amir Babović from Qubinets. Amir had developed a system that simplifies how companies store and manage their data in the cloud. Instead of data being scattered across ten different programs, Qubinets consolidates everything in one place—like replacing ten remote controls with a single smart one. This system naturally led to the development of AI agents, which integrate an organization’s data and expertise with language models like ChatGPT, enabling actionable insights and autonomous decision-making within their business systems.
Since 2022, Bruno has been helping Croatian businesses grow using AI. His collaboration with Qubinets has made these AI solutions accessible even to smaller companies—where businesses once had to invest a huge amount of money, they can now start with the price of a salary to have AI Agents and a system improving their performance.
The Foundation of AI-Powered Growth
“Success in marketing is like building a house—you need strong foundations,” says Bruno. “Those foundations are data: Who are your customers? Why do they buy? What problems do you solve for them? How much are they willing to pay? We used to gather this data manually over months—today, AI can do it in days.”
Imagine having an intelligent assistant that can instantly analyze thousands of customer comments on social media, examine five years of sales history, and pinpoint exactly what to emphasize in your next marketing campaign. Through API integrations, Checkgrow connects all your data to an AI system that works around the clock.
Bruno gives a concrete example:
“Let’s say you sell sports equipment. Do you know why customers choose your store? Is it the 48-hour delivery? The widest range of sneakers? Or the two-year warranty? And, more importantly—do your salespeople know this? What happens when you hire a new salesperson? Does it take six months for them to learn these key factors? The faster your organisation identifies and amplifies its sales drivers across all marketing channels, the faster your revenue can grow.”
AI Agents: The Virtual Workforce of the Future
Checkgrow employs AI agents that function like virtual employees—one agent analyzes market trends and competition, another interacts with potential customers via chat, while another monitors customer satisfaction. For instance, when someone visits an online store, the AI agent can instantly determine whether they are a returning customer, what they have previously purchased, and any past issues they encountered—allowing it to tailor communication accordingly.
“It’s like having a team of ten top marketers working non-stop,” explains Bruno. “One AI agent tracks what customers say about you on social media, another instantly replies to inquiries in chat, a third sends personalised offers based on purchase history, and a fourth alerts the sales team when a prospect shows strong buying signals. And all of this happens automatically, 24/7.”
The Impact of Checkgrow and Qubinets Collaboration
The partnership between Qubinets and Bruno has already yielded significant results. Amir Babović shares some numbers:
“In just five months, Bruno attracted 20,000 new active users to our platform—that’s equivalent to filling Varaždin Arena three times over. This growth proves that global companies need and want AI solutions. While major corporations invest millions in developing proprietary AI systems, we enable Croatian businesses to access the same capabilities at a fraction of the cost. We achieve this by intelligently applying AI agents, leveraging open-source tools, and automating the development of such solutions.”
2025: A Milestone Year for Checkgrow
2025 marks a major milestone as Checkgrow opens its first office in WESPA Spaces in Zagreb. But WESPA is no ordinary office space—it’s a hub where startup developers sit alongside executives from major companies. It was here that Checkgrow was born—over lunch, where Bruno and Amir sketched out their first ideas on a napkin.
WESPA is evolving into an AI lab where companies can witness Checkgrow in action and implement solutions on the spot. A furniture manufacturer, for example, can attend a morning presentation, connect their data to the platform by noon, and by the afternoon, receive their first AI-powered customer insights.
At their office on Heinzelova 60, Checkgrow plans to select ten partner companies by April 2025 to help significantly increase their sales. The goal? To take businesses generating €1 million in revenue today and scale them to €2–5 million within a year. They are particularly interested in startups seeking investment—Checkgrow’s AI system can provide investors with precise data on revenue growth, customer satisfaction, and market potential.
“AI will reveal things we may not want to see—like the fact that 80% of our marketing budget is wasted on the wrong channels,” says Bruno. “But these insights are crucial for making better decisions.”
“We don’t sell a generic AI tool that works the same for everyone. Our system adapts to each business individually—what works for a furniture manufacturer is different from what works for an IT company or a restaurant chain. It’s like having a marketing agency that works exclusively for you, 24/7.”
Want to See How AI Can Help Your Business?
Send an email to [email protected] or visit checkgrow.com. Within 48 hours, you’ll receive a free analysis of your current situation along with concrete recommendations to improve your results. Our team will show you how you can:
- Reduce advertising costs by 30–40%
- Automate 70% of routine marketing tasks
- Increase sales by 50% in the first six months
Croatia has already given the world Rimac Automobili, Infobip, and Photomath. Now, with Checkgrow, it adds another export success—an AI system that helps businesses grow faster and smarter. Already, companies from five European countries, ranging from startups to corporations with over 1,000 employees, are leveraging Checkgrow’s solutions.
