Welcome
Welcome to Procolin — my corner of the web.
Browse apps I’ve designed and shipped, explore side projects, and see what a decade of web and mobile work looks like in practice. This site is my portfolio and the official home for the apps I publish on the App Store and Google Play.
Say hello
Have a question about one of my apps, or just want to connect? Drop me a line below.
What I Build
Websites & web apps
I build the sites and landing pages behind my projects — including the product pages you see here. From early Flash experiments to modern WordPress and Flutter web, I've been making things for the browser for over ten years.
Mobile apps
This is where most of my energy goes. I design, build, and publish my own apps on the App Store and Google Play — mostly with Flutter, plus native iOS and Android when it fits. Each release gets a product page, privacy policy, and store links right here on procolin.com.
This site & my releases
Procolin.com isn't just a portfolio — it's the infrastructure for my apps: domains, hosting, privacy policies, and store-facing pages. One place for my work and everything people need to download or learn about it.
About Procolin
Procolin is my personal brand and project studio — founded by Ricardo Colin to ship apps and experiments I care about.
What started with Flash chat platforms and educational math apps has grown into a collection of mobile games and tools I publish independently. This site showcases that work; it’s not a client agency, but a living record of what I’ve built.
What I Work With
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Multi-platform apps — iOS, Android, and Flutter. The same projects you can download from the stores linked throughout this site.
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Modern tooling — AI-assisted development, CI/CD, and the workflows I use to build, test, and maintain my own releases.
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Side projects & experiments — education, games, utilities, and whatever idea is worth shipping next.
What You’ll Find Here
The badges across this site reflect years of building and shipping on my own — not a sales pitch, just the craft behind the projects.
Explore the portfolio for apps like Math Wheel and Guess Duel: screenshots, store links, and privacy policies for everything I publish.
10+ Years Building
Apps on App Store & Play
Self-Published Projects
Always Learning
Building things I love to use — and sharing them here.
About Me
I’m Ricardo Colin, an independent developer who publishes apps under Procolin.
My path started long before today’s social apps — Flash chat platforms, educational tools for kids learning math, and years of figuring out what makes software feel good to use. Today this site is home to the apps I ship and the story behind them.
If you’ve downloaded Math Wheel, Guess Duel, or another Procolin app, you’re in the right place for updates, privacy info, and support links.
Projects & Focus
Product pages & sites — Landing pages, privacy policies, and project sites hosted at procolin.com for each app I release.
Mobile development — iOS, Android, and Flutter apps I’ve designed, built, and published myself.
Engineering & tooling — AI-assisted workflows and CI/CD pipelines I use in my own development process — the same stack behind the apps on this site.
How I Build
I make software I’d want to use myself: thoughtful design, solid engineering, and apps that are fun or genuinely useful.
Procolin.com is my portfolio and the official web presence for everything I publish. No middleman — just projects I’ve built and put out into the world.
Get in Touch
Browse my projects, grab an app from the store, or say hi — I’m always happy to hear from fellow builders and curious visitors.