From legacy systems to native apps, engineered to last.

FreiLabs is an independent software studio. Our apps run on desktop, mobile and web, from a healthcare reimbursement system in production since 2023 to native macOS tools and games. Clients get the same engineering.

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products designed, built and maintained in-house
12
production databases put under replication (Progress OpenEdge)
20+
background workers powering RomCrate across web, mobile and desktop
10+
ReSUS running at a health insurer ever since
2023

What We Build for Clients

The same stack and the same standards we use on our own products, applied to your systems.

01 / ARCHITECTURE

.NET & Enterprise Architecture

New systems built end to end, and legacy apps modernized without losing data, like taking a WinForms and MS Access system to .NET MAUI.

C# ASP.NET Blazor .NET MAUI WPF Avalonia WinForms
02 / DATA & MIGRATION

Database Operations & Migration

Database migrations, performance tuning, replication and integrations with industrial hardware such as thermal label printers.

Progress 4GL MS SQL Server PostgreSQL SQLite MS Access
03 / NATIVE & 3D

Native Ecosystems & 3D

Native Apple apps written in Swift and AppKit, plus 3D simulations and games for desktop and mobile.

Swift AppKit macOS/iOS MonoGame Unity 3D
04 / WEB & EDGE

Landing Pages

Fast static sites, landing pages and web apps served from the edge, like this one.

HTML/JS Cloudflare Pages Blazor Web

Engineered Systems

Designed, built and maintained by FreiLabs, from systems with paying customers to native utilities and games.

ReSUS Icon

Ressarcimento ao SUS

Built for a Brazilian health insurer: imports ANS notices (ABI) and generates the SUS appeal forms. In production since 2023.

Zinq Icon

Zinq

Visual label designer for industrial thermal printers supporting IPL, ZPL, EPL, and DPL.

More apps & games

Have a system to build or modernize?

Tell us about it. We take on new systems, legacy modernization and native apps with the same care we give our own products.