Now building: Unicnet for Android & iOS

Mobile apps people actually use.

Quattrotrend is a software development company from Latvia. We design, build and launch native-quality Android and iOS apps — from the first sketch to the app stores and beyond.

  • Based in Latvia, EU
  • Android & iOS
  • Design to launch
We work with Kotlin Swift Flutter Firebase Google Cloud Vue.js TypeScript
Services

Everything a mobile product needs, under one roof

We take ideas from a sketch to a store listing. Pick a single service or hand us the whole product.

Android app development

Native apps in Kotlin and Jetpack Compose, tuned for the whole Android ecosystem — from budget phones to tablets — and ready for Google Play.

iOS app development

Swift and SwiftUI apps that follow Apple's Human Interface Guidelines, feel at home on iPhone and iPad, and pass App Store review the first time.

Cross-platform apps

When one codebase makes sense we build with Flutter: faster time to market, shared business logic, and a native look on both platforms.

Backend & cloud

Firebase and Google Cloud under the hood: authentication, realtime data, push notifications, serverless functions, maps and analytics.

Product & UX design

Research, user flows, wireframes and clickable prototypes before a line of code — then a polished interface users understand on first open.

Launch, growth & care

Store listings, review readiness, analytics and A/B experiments after launch, plus maintenance for every new Android and iOS release.

Our own product

Unicnet — we unite when you need it

A free mobile app that puts the publicly available restrooms and other essential facilities of a city on one map. Find the nearest one, navigate there, rate it — and businesses reach people exactly when they need them.

  • For people on the goMap and address search, built-in navigation, reviews, photos and favourites.
  • For partnersList your facilities with hours, prices and photos, then watch views, visits and ratings grow.
  • Built end-to-end by usAndroid and iOS apps, a Firebase backend on Google Cloud and the web app at unicnet.net.
Coming soon onGoogle Play Coming soon onApp Store
Illustration from Unicnet: a person checks the app on their phone next to a public restroom door Unicnet · Android & iOS
How we work

A clear path from idea to store release

Short milestones, a working build you can install every week, and no surprises in scope or price.

  1. Discover

    We map the goal, the users and the constraints, and agree on what the first release must do.

  2. Design

    User flows, wireframes and a clickable prototype you can test with real people before we build.

  3. Build

    Native or cross-platform code with automated tests, connected to a Firebase backend from day one.

  4. Launch

    Store listings, screenshots, privacy details and review readiness for Google Play and the App Store.

  5. Grow

    Analytics, crash monitoring, experiments and updates for every new OS version — for as long as you need us.

Why Quattrotrend

Small team, senior hands, our own skin in the game

You talk to the people who build

No account managers in between. The engineers and designers on the call are the ones shipping your app.

We ship our own products

Unicnet is built with the same process and stack we offer clients, so we know what works in the stores — not just in theory.

EU-based, privacy by default

Registered in Latvia. GDPR-compliant data handling, privacy policies and consent flows are part of every build.

Transparent scope and pricing

Fixed milestones with a demo at the end of each one. You always know what has been built and what comes next.

About us

A young studio with a product-first mindset

Quattrotrend SIA is a software development company registered in Latvia. We started by building our own mobile product, Unicnet, and we bring the same care to the apps we build for others.

Our focus is narrow on purpose: mobile applications for Android and iOS, the cloud backends behind them, and the web apps that support them. That focus lets us go deep on quality instead of wide on buzzwords.

More about the company
Quattrotrend SIALimited liability company, Latvia (EU)
Android & iOSOur core focus, plus web and cloud
Kotlin · Swift · FlutterNative and cross-platform stacks
Firebase · Google CloudBackend and hosting platform

Have an app idea? Let's talk.

Tell us what you want to build. We'll reply within one working day with questions, a rough plan and an honest estimate.

Get in touch
Contact

Get in touch

Clients, partners and curious people are all welcome. Email is best for project enquiries; WhatsApp for quick questions.

Sending opens your email app with the message prefilled to info@quattrotrend.eu. We do not store anything on this website.