Sintropia — Where Order Emerges from Chaos

— What we do

Intelligent systems and software, made useful.

IA · 01

Custom AI Agents

Intelligent workflows that reason, execute, and route across your tools.

01 / REASON Understand and decide.
02 / ACT Take actions across your stack.
03 / OBSERVE Continuously learn and adapt.

Talk to Arthur →

IA · 02

AI Knowledge Retrieval (RAG)

Turn internal documents into an interactive, instant search engine.

01 / INGEST Manuals, contracts, records.
02 / RETRIEVE The passage that matters.
03 / ANSWER Grounded, with its source.

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Software · 03

Web Application Development

Full-stack digital products engineered to scale smoothly.

01 / ARCHITECT Model the domain first.
02 / BUILD Ship in weeks, not quarters.
03 / SCALE Hold under real load.

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Software · 04

Native & Cross-Platform Mobile Apps

High-performing iOS and Android apps from one integrated team.

01 / NATIVE Swift and Kotlin, not wrappers.
02 / CRAFT Motion, detail, restraint.
03 / SHIP Store-ready and monitored.

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Software · 05

Legacy Tech Overhaul

Re-architecting outdated systems without slowing down live operations.

01 / AUDIT Read what runs today.
02 / RE-ARCHITECT Debt replaced with foundations.
03 / MIGRATE Without pausing production.

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— Selected work

Built by the
atelier.
Trusted by builders.

Every product we ship becomes part of our permanent record. No portfolio decks — only things that exist, run in production, and hold under real conditions.

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Live

Synapse

Where thinking becomes a map.

A knowledge graph iOS application that turns notes, books, and ideas into a living web of connected thought. Built from the ground up with native Swift — performance-first, architecture-first, beauty second.

Flutter System Design Cloud Backend AI Discover & Suggest Engine UI · UX Security

Live

Arthur

The conversation before the project.

The agent you can talk to on this page. Grounded in what we've written, so it doesn't invent. Observable turn by turn, so nothing is a black box. And when your project fits, it hands the conversation to a human — summary included.

Conversational AI RAG · Memory FastAPI System Design UI · UX

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In development

Regere

The building, run from one place.

Built as a product, delivered as a platform. Regere centralises inventory, prices and reservations, and gives each of them a workflow designed for how an agent actually sells — on any screen size. Arthur reads the same data to answer questions in plain language. Arcadia is its first client — the platform was built to have more.

Next.js PostgreSQL Tenant-ready UX workflows Responsive Arthur

Arcadia Inmobiliaria · private platform

Scale as you need
with a trusted partner.

Our philosophy is absolute: architecture over trend, performance over appearance; engineering and aesthetics in one single essence.

We partner with founders and teams who have left behind ephemeral solutions and demand impeccable development. We don't patch—we architect. We reason, and then we create.