Your idea deserves a team that has already shipped one of their own.
Esmerio Solutions builds digital products that solve real problems — for companies that need a serious technical partner, and for people who deserve better tools in their daily lives. We don't just write code. We've already launched our own apps. We know what it takes.
Products live in the store · Real users · Your data stays yours
Most software is built to be delivered. Ours is built to last.
There's a difference between a company that writes code and a company that builds products. Code writers deliver the project, close the contract, and move on. You're left with a system only they understand — and a roadmap nobody owns. Product builders think differently. They think about who will use it. About the problem that needs to disappear. About what happens six months after launch. That's how we work at Esmerio. Every product we ship — including our own — is built with the same principle that names this company: esmero, a Portuguese word meaning extreme care, the refusal to ship something not ready to last.
A product studio, not an agency
We build products with a life of their own — published in stores, used by real people, with metrics that matter.
We build from zero to launch
From idea to store. Architecture, design, development, publishing. You focus on the business. We handle the technical execution.
We decide with data, not assumptions
No feature ships without understanding who will use it and why. Every decision needs to earn its place in the product.
We stay after launch
We don't disappear when the project closes. We monitor, iterate, and evolve — because good software is software that gets better.
Products already in the world
Before offering the market what we can do, we proved it on our own products.
Frugi
Personal finance & price comparison app. Frugi scans prices in real time, detects shrinkflation, and organizes your spending in a spreadsheet on your own Google Drive.
CashbackNet
Cashback & loyalty platform. A B2B and B2C cashback system connecting businesses to consumers through progressive benefits and loyalty campaigns.
More coming
New products being built with the same philosophy: technology that solves, data that belongs to the user, and code we're proud of.
You have an idea. We have the team to build it right.
Whether you're a founder with a napkin sketch or a company with a system that needs rebuilding — we can be the technical partner you're looking for.
Mobile development
Android and iOS apps built with React Native. Publishing, maintenance, and continuous evolution.
Web systems & platforms
Dashboards, portals, admin panels, SaaS platforms. Modern stack, clean code, real documentation.
Integrations & APIs
We connect your existing systems with the tools you use. Google Workspace, ERPs, payment platforms.
Data products
Dashboards, automated reports, intelligent exports. Your data organized the way you need to see it.
AI-powered features
On-device machine learning, OCR, smart automation. We build AI features that actually work in production.
Security-first architecture
Systems built to protect user data — with minimum necessary permissions and best practices applied.
Tell us about your project
No lengthy forms. A quick conversation to understand what you need.
Esmero is a word that's almost gone out of fashion. In a world where everything is urgent, where MVP means "ship before it's ready", where today's code is tomorrow's technical debt — esmero sounds old-fashioned. It isn't. Esmero is what separates a product people use from a product people tolerate. It's the difference between an app that opens and an app people recommend. Between a system that works and a system a company trusts. We're not the fastest option. We're the option you won't have to rebuild. We build every product as if our name is on the store listing — because it is.
How a project starts here
We understand the problem
Before any line of code, we want to understand what you're trying to solve. Not what you want to build — the problem that needs to disappear.
We design the right minimum solution
Not the biggest product possible. The smallest product that solves the problem with excellence. Fewer features, more focus.
We build with full visibility
You follow the progress. No black boxes, no surprises at the end. Short iterations, constant feedback.
We launch and keep going
Launch isn't the end. It's where the product starts living for real. We monitor, adjust, and evolve.
What makes us different in practice
We use our own products
Frugi was built because we needed it. When you use what you build, tolerance for what doesn't work is zero.
User data stays with the user
It's a design principle, not a feature. No product we build stores user data on proprietary servers when there's an alternative.
Code that other people can read
Real documentation. Variable names that make sense. Architecture a new developer can understand in hours, not weeks.
No responsibility outsourcing
The team that talks to you is the team that writes the code. No management layers between the problem and the solution.
Frequently asked questions
Have an idea that deserves to become a real product?
It doesn't matter if it's an app you want to launch, a system that needs to be rebuilt, or an idea still on a piece of paper. If the problem is real, the conversation is worth having.
We respond within 24 business hours. No commitment required.