Minhas CartinhasYour cards, your treasure.
An idea that became an adventure
Minhas Cartinhas began with Cauã Gabriel Ritter de Oliveira's curiosity and took shape in a project he built with his father, Anderson Menezes de Oliveira.
The idea and a collector's perspective
Originator, researcher, designer, and co-developer. An eighth-grade student at Colégio Adventista de Novo Hamburgo in Rio Grande do Sul, Brazil.
Cauã looked at what worked and what got in the way in card apps. He researched the market, found the problems, and imagined a simpler, more playful experience: one he would want to use himself.
The architecture and development
Founder of afirma.cc, AI solutions architect and co-developer of the app.
As a father and project partner, Anderson helped Cauã plan, structure, and build the ideas, turning their shared vision into an app.
Why we made it
The wish to help other children understand their cards and check references before a trade inspired this project. The app was conceived in Portuguese, English, and Spanish to reach more families. Prices are market estimates: children still make their own trading decisions with guidance from a caregiver.
This is the first project Cauã and Anderson made together. Beyond the code, it holds the conversations, discoveries, and choices of a father and son building something they believe in.
Cauã + Anderson
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