Cross-Platform Mobile App Development for Portland-based Businesses

Stfalcon is a firm specializing in Cross-Platform Mobile App Development

Based in Portland, Oregon, we possess extensive expertise in developing cross-platform mobile apps. Our advanced and proven solutions ensure smooth coordination and seamless workflow across all processes in your project.

Our Cross Platform Mobile App Development Process

Cross-platform mobile app development involves numerous iterations to ensure the smooth operation of your project and includes the following stages:

Setting the requirements

Our specialists analyze your inputs and formulate precise business requirements.


We start its magic, designing apps including prototyping, mockups, and creating large marketplaces, CRM, and TMS in line with your needs

Software testing

Our experts perform both manual and automated testing to ensure top-level service for every client.

Publishing app

Ensure a fast and hassle-free application release with our services. Based in Portland, Oregon, we will deploy your enterprise applications and maintain their seamless operation.


Stfalcon, based in Portland, ensures quick response and troubleshooting for any project bugs reported by clients.

Benefits of Custom Cross-Platform Mobile App Development

Discover the benefits you can gain from our cross-platform mobile app development solutions.

Increase Employee Engagement

You can enhance communication within teams and across different departments, leading to increased productivity and happier employees.

Process Automation

With cross-platform mobile app development, you can accelerate in-house processes and reduce the need for human intervention.


This is achieved by eliminating the need to hire numerous developers with various tech stacks. With Stfalcon, you receive a high-quality app with no hidden fees.

Support Agility

Discuss, implement, and verify innovative ideas swiftly to stay competitive in the ever-changing market.

Our Cross Platform Mobile App Development Services in Portland


We develop robust iOS apps with a wide range of features, including integrated Touch ID or Face ID authentication, Apple Pay integration, and advanced machine learning technologies.


Our specialists build native Android applications with integrated third-party services, offering features such as real-time synchronization, GPS tracking, and more.


Stfalconers create high-capacity cross-platform mobile apps, enabling your team to run the app across multiple platforms and enjoy its full functionality.


Our experts not only effectively design the UX but also focus on the technical aspects of your enterprise. We strive to create a complete infrastructure for your app or web application.

Technology and Stack We Use for Cross-Platform Mobile App Development

technology stack

  • Native Android
  • Room
  • Firebase
  • CI/CD systems
  • Dependency Injection
  • Retrofit
  • Gson
  • Kotlin
  • Kotlin Multiplatform Mobile

technology stack

  • Native iOS
  • Alamofire
  • Swift
  • Realm
  • Core Data
  • Firebase
  • SwiftUI
  • RxSwift
  • Moya

Flutter technology stack

  • Flutter SDK
  • Dart
  • BLoC
  • SQfLite
  • build_runner
  • freezed
  • Dio
  • json_serializable

UI/UX Design Technology stack

  • Figma
  • Sketch
  • Photoshop
  • After Effects
  • Illustrator
  • Principle

Front-end stack

  • JavaScript
  • TypeScript
  • Vue.js
  • React

technology stack

  • PHP
  • Symfony
  • Doctrine
  • PostgreSQL
  • MongoDB
  • MySQL
  • Redis
  • Centrifugo
  • Kubernetes
  • Rest Api
  • ElasticSearch
  • GoLang
  • Microservice architecture

Facts In Figures


finished projects



14+ yrs

on the market


rate on the Clutch

What Our Clients Say About Our Cross-Platform Mobile App Services

Nova Poshta

The leader of express delivery in Ukraine Working since 2016
We designed a multi-component and multi-functional application for Nova Poshta. We used cutting-edge technologies to design a personal dashboard, develop an intuitive interface, and integrate Nova Poshta's API.
Review: We significantly improved current Personal Dashboard, flexibility of created solution allowed us to bring user experience to a new level.
Pavel Yeremenko
Head of UX at Nova Poshta
Read the full case study in our portfolio

MeinFernbus (now Flixbus)

Web project and web design for the German largest passenger transportation company
The team addressed Stfalcon with the task to integrate one more sales channel and the web interface. As a solution, our team developed an interactive app with three main sections: Station, Booking, Information. So users can find all requested information in a few clicks and without registration.
Review: We could arrange such kind of work where the process of development solves much more business problems rather than creating any. This is a very valuable feature to have when you are developing a startup.
Aleksey Kolupaev
CTO at MeinFernbus
Read the full case study in our portfolio


Online platform for ordering services
The application guarantees exceptional quality in the process of ordering and delivery of services. The out-of-the-box system has been completely redesigned to offer users a fast, convenient, and reliable product to ensure the best scenario when ordering various services. Based on a proven technology stack, the platform runs on both Android and iOS.
Review: We’ve rebuilt the project from scratch. I’m very happy about the collaboration. Work is really well: reasonable prices, good communication, and good quality of the deliveries.
Robin Szekely
Founder at the online platform “TaskRunner”
Read the full case study in our portfolio

Industries We Transform

Real Estate

Hiring Models

Full time


Minimum Hours
Per Month
Part time


Minimum Hours
Per Month

Why companies choose Stfalcon for Cross Platform Mobile App in Portland?

80+ staff on board

Based in Portland, Oregon, our firm comprises skilled and continuously learning specialists dedicated to meeting your business needs.

Satisfied customers

Stfalcon is a customer-oriented team with over 346 successfully delivered projects to its name.

top-notch staff with many industry awards

Stfalcon is widely known in the industry. Our services are rated 4.9 on Clutch, B2B ratings, and reviews platform

14+ years on the market

Our experts rely on our experience in delivering {{$specialization}} development services. You can also give it a go!
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Our Clients Around the World

FAQ About Cross Platform Mobile App Development in Portland


What is cross-platform mobile app development?

Cross-platform mobile app development involves creating a single app that can run on multiple operating systems, such as iOS and Android, using a single codebase.


Why should I choose cross-platform development for my app in Portland?

Choosing cross-platform development can save time and money, as it allows you to reach a wider audience with a single development effort and reduces the need for separate teams for each platform.


What technologies do you use for cross-platform mobile app development?

We use popular frameworks like React Native, Flutter, and Xamarin to build high-performance cross-platform mobile apps.


How long does it take to develop a cross platform mobile app in Portland?

The development timeline varies depending on the complexity of the app, but on average, it can take anywhere from 3 to 6 months to develop a fully functional cross-platform mobile app.


How do you ensure the quality of the cross-platform apps you develop?

We follow a rigorous testing process that includes both manual and automated testing to ensure our cross-platform apps are bug-free and perform seamlessly across all devices.


What is the cost of developing a cross platform mobile app in Portland?

The cost of developing a cross-platform mobile app depends on various factors, such as app complexity, features, and design requirements. Contact us for a detailed quote tailored to your specific needs.

Our Experts


Artem, Backend Dev

14 years of experience

Andriy, Frontend Dev

6 years of experience

Oleksandr, СТО

10 years of experience

Yevhenii, iOS Dev

3 years of experience

Vadym, Designer

9 years of experience
Contact us and we'll be happy to create something awesome for you


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