How Petadev built Ostva, a US rental marketplace: React Native apps, owner-approved bookings, Stripe Connect payments, identity checks and a web admin panel.

Marketplace App Development: Lessons From Ostva

How we built Ostva, a US rental marketplace app, with React Native. Practical lessons on booking approvals, Stripe Connect payments, identity verification, and deciding what belongs in the first release.

Marketplace App Development: Lessons From Building Ostva

How Petadev runs Trinity Guard across two AWS regions and a dedicated server. One codebase, independent databases, staged deployments.

Multi-Region Architecture on AWS: A Three-Region Case Study

Multi-region has a reputation for being complex. Most of that comes from keeping data consistent across regions, a requirement Trinity Guard doesn't have. Here's what we built instead, and where the approach stops working.

How we run Trinity Guard across three regions on AWS and beyond

How Petadev turned decades of real-world security experience into Trinity Guard, building its mobile app, web platform, backend, cloud infrastructure and AI.

Trinity Guard Case Study: Custom Security Software Development | Petadev

How do you turn decades of real-world security experience into software that actually works in the field? Trinity Guard started with a practical patrol-verification problem and grew into a mobile and web platform with GPS and QR checkpoints, scheduling, AI-assisted fraud detection and international deployment.

Building Trinity Guard: Turning Real-World Security Experience Into a Digital Patrol Platform

A US founder spent years planning his platform, then had to choose who would build it. He picked a team in Central Europe. Here's the evaluation, the working rhythm, and why the time difference never became a problem.

Choosing a development partner from 4,700 miles away: how Ostva got built

Most articles about offshore development argue a position. This one doesn't. It's an account of how one founder made the decision, what the working relationship actually looked like week to week, and what he'd tell someone considering the same thing.

Thomas Novoszáth had been planning Ostva for years before a single line of code was written. He'd refined the concept, worked through the mechanics, and reached the point every founder eventually reaches: he needed someone to build it.

That's where the hard part started.

Case study

Marketplace App Development: Lessons From Building Ostva

How we run Trinity Guard across three regions on AWS and beyond

Building Trinity Guard: Turning Real-World Security Experience Into a Digital Patrol Platform

Choosing a development partner from 4,700 miles away: how Ostva got built