The all-in-one app for building contractors

Introduction

In the construction industry, tradespeople and small business owners face a multitude of time-consuming administrative tasks: creating quotes, chasing clients, managing schedules, tracking job progress, invoicing…
To meet this pressing need for centralization and efficiency, JAK Solutions designed Cobria, an all-in-one app built specifically for construction professionals.
Developed by a team of 10, Cobria automates and simplifies essential daily tasks through a highly intuitive interface, powerful features, and an integrated AI assistant, Max, to support users at every step.

Challenges

One of the main challenges was to design a comprehensive application without making it complex.
Construction professionals need a simple, quick-to-learn tool they can use on-site, without prior training.
We had to create something powerful yet accessible, capable of handling a wide variety of real-world cases (VAT, discounts, signatures, reminders, translations, etc.) while remaining fluid.
Another major challenge: delivering a mobile-first experience with seamless synchronization between team members and devices.
Finally, integrating an AI that genuinely saves time — not just "suggests" — was a key technological goal we had to achieve.

Solutions

We adopted a user-centered approach, co-designing the interface with real tradespeople and business owners.
Every feature — from quote creation to team planning — was designed to minimize clicks and cognitive load.
We built a smart quoting system, capable of generating complete quotes in seconds thanks to Max, our AI assistant, who learns from the user’s habits to automatically suggest services, fill in lines, calculate totals, and generate ready-to-sign documents.
Invoicing is done in one click, with automated numbering, VAT handling, and reminders.
A shared visual calendar allows users to drag and drop appointments and tasks, with automatic reminders for all stakeholders.
Lastly, we designed a robust architecture to ensure smooth performance across all devices — even on the go.

Impact

Cobria is now a complete tool, used daily by independent contractors and construction professionals.
It helps them drastically reduce the time spent on admin, secure their payments, and gain visibility on their ongoing projects.
With Max, their new AI assistant, users stay responsive and can focus on what they do best.
Market feedback has been overwhelmingly positive, with high satisfaction rates and enthusiastic responses to the intuitive interface.
Cobria stands as the smart, simple, mobile-first digital tool the industry was waiting for — and it’s free to get started, with no commitment.

Like what you see?

Give us a poke.

Poke JAK