Mobile & Web Studio

We build apps that matter

Allegra System crafts high-quality mobile and web applications — thoughtfully designed, precisely engineered, built for real users on every platform.

Active Users
10+
Apps in 2026
iOS · Android · Web
Data Policy
Privacy
First
EU · GDPR · App Store
iOS Development Android Apps Web Applications CoreML & AI App Store Publishing Privacy by Design EU & US Markets SwiftUI & React Native UX / UI Design GDPR Compliant iOS Development Android Apps Web Applications CoreML & AI App Store Publishing Privacy by Design EU & US Markets SwiftUI & React Native UX / UI Design GDPR Compliant
Our approach

Built different,
on purpose

Every application we create is designed from first principles — user-centered, technically sound, and built to last across app stores and geographies.

01

User experience first

We design for the person holding the phone, not for the feature list. Intuitive flows, clear hierarchy, and interactions that feel natural.

02

Privacy by architecture

Data minimization is not a checkbox — it's how we build. On-device processing, transparent data policies, and full GDPR compliance from day one.

03

Market-ready, every time

From App Store review guidelines to Play Store policies, we navigate the requirements so your app ships without delays or rejections.

Platforms

Every platform,
one team

We cover the full spectrum of modern application development — from native mobile to cross-platform web, in both European and US markets.

📱

iOS Native

SwiftUI, CoreML, HealthKit, StoreKit. Built for App Store approval.

🤖

Android

Kotlin, Jetpack Compose, Google Play ready. Optimized for all screen sizes.

🌐

Web Apps

React, Next.js, performance-first. Works seamlessly alongside mobile.

AI Integration

On-device and cloud AI, intelligently applied — where it adds real value.

How we work

From idea to
launch

A clear, repeatable process that moves fast without cutting corners — designed to ship quality apps consistently.

01

Discovery

Define the problem, the user, and the market opportunity.

02

Design

UX flows, UI system, interactive prototype — reviewed together.

03

Build

Native or cross-platform development, privacy-compliant from the start.

04

Review

App Store and Play Store submission, review and approval management.

05

Grow

Monitor, iterate, and scale — with data-informed decisions.

A Romanian studio built for global scale

Allegra System SRL is registered in Bucharest, operating under EU law, with a focus on building applications for both European and US markets. We combine technical depth with a clear understanding of what makes consumer apps succeed.

🇷🇴
Allegra System SRL — registered entity, Bucharest, Romania
⚖️
GDPR compliant — all applications built to European data standards
🍎
Apple Developer Program — authorized publisher on the App Store
🔒
Privacy-first engineering — on-device processing where possible
2
Markets — EU & United States
0
Data sold or shared with third parties
Commitment to quality & user trust