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A product team that stays with the product after launch day

Rero is a custom software development company. Our senior engineers, designers and QA specialists work as one team to build reliable software and support it beyond the first release. We focus on long-term partnerships, helping companies evolve their products and deliver lasting value.

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67 engineers on staff, not sourced per project

10years of software development experience
200+products delivered across web and mobile
67senior engineers across web, AI and mobile
90%of clients come back for a second project
01 — Our story

From building apps to engineering entire systems.

Our roots are in mobile development, where we learned to build products that go beyond the app itself. As projects grew more complex, so did our work, expanding into backend systems, integrations and business software.

Founded in the US, Rero builds on 10 years of experience to deliver custom software for growing businesses and enterprise teams, combining senior engineering expertise with AI-assisted development.

  1. The beginning of our journey

    We start building mobile products for businesses, laying the engineering foundations that would grow into a broader software development practice.

  2. Beyond mobile apps

    Projects expand to include custom APIs, databases, admin panels and third-party integrations, bringing more of the product development process under one team.

  3. A dedicated QA practice

    We establish a QA practice, integrating manual and automated testing into the development process from the start.

  4. Complex integrations and AI features

    We take on products involving payment systems, communication APIs and AI integrations, connecting multiple services into cohesive digital solutions.

  5. From products to business systems

    The focus expands to larger software projects supporting business operations, automation, customer portals and connected platforms.

  6. Rero enters the US market

    With 10 years of experience behind us, we bring together custom software development, legacy modernization, business systems and AI-enabled solutions to help companies solve complex challenges and build for the long term.

02 — How we work

Four principles behind our work

01

Senior-only team

Every engineer on your project has experience shipping production software. No unnecessary layers between you and the people building your product.

02

Fixed scope, fixed quote

We define requirements and priorities before development starts. You know what is being built and what to expect from the start.

03

You own everything

Code, designs, accounts and infrastructure are yours from the start.

04

Weekly demos

You see working software every sprint, not a status report. Course-correct while it's still cheap.

03 — Leadership

The people behind your project

Meet the people responsible for your project, from the first conversation through delivery and beyond.

George Petrovsky

Founder & CEO

With over 10 years of experience in business development and entrepreneurship, George combines commercial insight with a strong understanding of technology. As Rero’s CEO and founder, he oversees business strategy, client relationships and the direction of each project.

LinkedIn →

One team, from start to finish

Our engineers work as part of Rero, not as freelancers assembled for each project. You work directly with the people building your software, from the first discussions through delivery and beyond.

04 — Company

Where we are and how to reach us

Legal name
RERO Apps CorporationCompany no. 1051378
Headquarters
8 The Green, Suite B, Dover, DE 19901
Team
US, Poland, Lithuania, Spain
Working hours
At least four hours of working-day overlap with US and European time zones.
05 — Clients & recognition

What the people we worked with say

Reviews on Clutch ↗Reviews on Upwork ↗
“RERO delivered a financial consultation portal with a clean design, good performance, and proper documentation. The portal made complex workflows feel simple, and we received positive feedback from users, clients, and investors. The team was professional and easy to work with.”
Financial Software Development CompanyManaging Director
1 / 5
06 — Certifications

Certified to the highest standards

  • ISO/IEC 27001

    Information security management, audited annually.

  • GDPR compliant

    Data processing agreements and EU-hosted infrastructure on request.

  • Clutch Top Developer

    Verified client reviews, 4.9 average rating.

  • HIPAA-aware delivery

    Process and infrastructure for regulated healthcare products.

07 — Case studies

Products we took from idea to store

Expert AI Chat

Platform for brainstorming and executing tasks within a single chat interface.

Cozy Kitchen

Effortless meal planning and cooking app for everyday users.

Up.You

Get psychological help from qualified professionals.

Second Number

Call and text without a SIM card, using a private virtual number for personal and international calls.

WeightLoss

Weight tracking app with recipes and workouts.

Sway AI Dance

App for transforming still images into AI dance videos.

Synchron Time Tracker

AI-powered platform for project management, time tracking, and team collaboration.

All case studies →

08 — Careers

Want to work at RERO?

We hire rarely and keep people long. Open roles are listed on LinkedIn.

Talk to the people who would build it

Tell us what you are working on. We’ll discuss your goals, requirements and the best way to move the project forward.

Or write to info@rerotech.com

Schedule a consultation

Tell us what you are looking to build. A senior engineer will get back to you to agree a time and the right approach.

Or write to info@rerotech.com