Software studio, London

Engineering driven
mobile, web & AI products

We build mobile and web apps for founders and teams who care about quality engineering, with AI at the core. Small studio, senior work, run from London.

Turning ideas into apps people come back to.

Five years of senior mobile and web work, and over 300,000 people using the result.

We've shipped production apps in fintech, social and healthtech for international studios. Falconia is the same work, delivered straight to you. No account managers, no eighty-page proposals.

What we do

We act as a senior partner for the apps and platforms your business runs on, from the first conversation through to launch.

Track record

Apps in the wild,
users who come back.

A few numbers from the past five years of production work, across mobile, web, AI, and the quiet infrastructure that keeps them online.

A user holding a phone running an app we built.
Production users
300K+

End users on apps we've shipped across fintech, social and healthtech. Live on the App Store and Play Store today.

Years senior
5+

Leading mobile and web builds for international studios. Every engineer who touches your project has shipped before.

Apps shipped
20+

Across iOS, Android, web and cross-platform. From MVPs through to multi-tenant production platforms.

A senior engineer pair-programming on a Falconia engagement.
What we build

Six practices,
one studio.

AI is what we lead with. Mobile and web are how we ship it. Every project is run by people who do this for a living.

  • Chat, agents, vision, semantic search, smart workflows. Built into apps that survive at production scale. Provider-agnostic, with real cost and latency budgets per feature.

    • OpenAI, Anthropic and open models
    • RAG, embeddings, agents, multi-step workflows
    • Prompt evals and safe fallbacks for production
  • One codebase, both stores. Flutter and React Native apps that feel native because we treat them that way.

    • Flutter and Dart as our primary toolkit
    • React Native and TypeScript when it fits
    • White-label architecture for multi-tenant builds
  • When the platform really matters, we go native. Swift for iOS, Kotlin for Android.

    • Swift and SwiftUI for iOS
    • Kotlin and Jetpack Compose for Android
    • App Store optimisation and review-cycle planning
  • The dashboards, admin panels and APIs that hold your app together. Next.js, Node and .NET, picked to fit the job.

    • Next.js and React for product surfaces
    • Node and .NET / C# on the backend
    • PostgreSQL, Redis, SQL Server
  • Inherited a slow app with no docs? We audit the codebase, stabilise the worst of it, then plan a roadmap to actually grow it.

    • Code and performance audits
    • Refactor and modernisation
    • CI/CD and observability setup
  • Architecture reviews, AI strategy, tech due diligence, hiring help. For when you need a brain, not more hands.

    • AI feasibility and strategy
    • Tech due diligence for investors
    • Architecture review and migration planning
Founder

Milos Nastic.
A senior partner for the apps your business depends on.

"Your app is often the first thing your customers touch. It should match the quality of the business behind it."

Five years building production mobile and web apps for international studios, in fintech, social and healthtech. Those apps now serve over 300,000 people. Falconia is the next step: the same work, delivered straight to founders and teams who need a senior partner rather than an account manager.

Milos Nastic Founder & Lead Engineer, Falconia LTD
Tools we reach for

Boring tech for the boring parts. Sharper tools where they earn it.

Start a conversation

Get in touch with our studio.

Want to talk about a new app, fix an old one, or add AI features that actually work? Drop us a line. First call is on us.

Contact us