google rating and review

Cross-platform Mobile App Development Services

Creating High Performance Apps For Multi-Platform

MYER

Developed and maintained scalable Warehouse Resource Management software.

Anglicare

Mobile app with ARCHIBUS integration kiosk stand software development.

Visuals2Go

Cross-platform mobile & tablet app for disabled people.

NobleOak

A complex financial model with end-to-end and AI customised user journey.

SydneyWater

Custom software integration between SAP ERP and InEight (project controls software).

Hillsong

Mobile donations form with payment gateway integration.

Metro Finance

Designed and developed a web application to manage & streamline shifts.

Site360

SaaS platform – Geofenced visitor management & fully customisable workflow forms.

Acorn Rentals

Custom accident replacement vehicle system that automates the entire rental process.

TaxToday

Streamlining instant refunds with highly secure cloud native application.

Designpluz Google Reviews with 110+ 5-star ratings

Cross-Platform Apps Built for Modern Businesses

At Designpluz, we provide cross-platform mobile app development services for Australian businesses expanding their audience base with high-quality applications across multiple platforms. As a Sydney-based app development company, we create fast, robust, secure, and scalable mobile applications utilising modern frameworks like React Native and Flutter. We focus on developing scalable, user-friendly applications that will help your business grow over time while providing the best possible performance regardless of device or operating system.

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Designpluz Google Reviews with 110+ 5-star ratings

Our commitment to client satisfaction is evident through our genuine 5-star google reviews

cross-platform app development company

Our Numbers Tell Our Story

Our commitment to quality and client success, by the numbers.

experience

18+ Years

Delivering Digital Solutions for Australian Businesses

special

45+ Specialists

Software Engineers, Architects, Web Developers, UI/UX Designers & Analysts

reviews

110+ Reviews

Verified Google Reviews from Australian Clients

australia

100%
Australian Owned

Sydney-Based Leadership & Governance

ISO

ISO 9001 & 27001

Certification Program Currently Underway

projects

1,000+ Projects

Successfully Delivered Across Multiple Industries

users

50K+ Users Daily

Across Australia and New Zealand, on platforms We Design and Support

annually

$40M+ Annually

Processed Through Mission-Critical Financial Platforms

Our Cross-Platform App Development Services

cross-platform app development

Custom Cross-Platform App Development

We develop custom cross-platform mobile applications using a single codebase, delivering consistent performance across iOS and Android while aligning with your business goals, user requirements, and future growth plans.

app design

Cross-platform App Design

We create intuitive and visually engaging app interfaces that deliver consistent experiences across platforms. Our responsive app designs balance usability, brand identity and user expectations to ensure a seamless experience across different devices and operating systems.

mobile-and-web-synchronisation

Mobile + Web Synchronisation

We build cross-device applications that synchronise data across mobile, web, and progressive web app environments, enabling users to switch platforms without losing functionality, data, or performance.

app migration

Cross-Platform App Migration

We migrate existing native or legacy mobile applications to modern cross-platform frameworks like React Native or Flutter, improving maintainability, reducing development costs, and enhancing performance across devices.

api and backend integration

API & Backend Integration

Our developers integrate secure APIs and backend systems to help cross-platform applications communicate seamlessly with databases, third-party platforms and cloud services. This creates reliable data exchange and consistent functionality across different devices and operating systems.

maintenance and updates

Maintenance & Updates

Post-launch, we deliver ongoing maintenance, feature enhancements, and regular updates to keep multi-platform apps stable, secure, high-performing, and ready for future growth.

Benefits of Investing in a Cross-Platform App

cost reduction

Cost Efficiency

Using a single codebase reduces the development, testing, and maintenance work required, while ensuring the product performs consistently across different mobile platforms.

better customer experience

Faster Time-to-Market

Cross-platform development results in shorter build cycles, allowing businesses to release apps faster and respond to market opportunities without delay.

wide audience reach

Wider Audience Reach

By targeting iOS and Android from a single codebase, businesses can reach more users without doubling development costs or effort.

reduce development effort

Reduced Development Effort

A shared codebase makes it easy to update, fix bugs, and roll out new features across both iOS and Android simultaneously, saving time and technical resources.

scalable and future ready

Scalable & Future-Ready

The architecture of our application is designed for long-term growth, allowing the app to scale smoothly as user demands increase, business needs evolve, and new features or integrations are required.

easy update and rollouts

Easy Updates & Rollouts

A single codebase makes updates easier to develop and release, allowing teams to easily deliver new features and updates to all platforms at the same time with minimal effort.

Transform Your Business Operations with AI

The core technologies powering our mobile app solutions.

Building high-performing mobile applications requires the right combination of platforms, frameworks, and tools. We use trusted technologies to develop iOS, Android, and cross-platform apps that are built to grow, secure, and tailored to business needs.

Microsoft .NET
C#
REST API
Microservices
Docker
Python
ChatGPT
Claude
SQL Server
Power BI
Azure Data Lake
MySQL
PostgreSQL

Web Applications

HTML
CSS
Javascript
Angular
React

Mobile Apps

React Native
iOS
Android

UI/UX

Figma
XD
Blob Storage
Amazon S3
Amazon SES
SendGrid
ClickSend
Firebase
Azure
AWS
Google Cloud
DevOps
Power Platform

Why Choose Designpluz?

skilled team

Skilled Development Team

Our experienced cross-platform app developers are dedicated to creating scalable and secure applications using modern frameworks, ensuring that performance is consistent across all devices and platforms.

cost-effective

Cost-Effective Solutions

We provide cross-platform app development services that significantly reduce development and maintenance costs, effectively eliminating the need for multiple native codebases.

agile-process

Agile & Transparent Process

We use an agile method that supports flexibility, provides regular progress updates, and ensures clear communication throughout the entire cross-platform application development lifecycle.

end-to-end delivery

End-to-End Delivery

As a cross-platform app development company, we provide end-to-end application solutions you need under one roof, from concept and design to development, testing, deployment, and ongoing support.

Meet your expert team

Our Process of Building a Cross-
Platform App

Step 1

Discovery & Requirement Analysis

We begin by understanding your business goals, target audience, and technical requirements to define a clear roadmap for cross-platform mobile app development.

Step 2

UI/UX Design & Prototyping

Our design team builds interactive wireframes and prototypes focused on usability and accessibility. This helps them deliver seamless and consistent experiences across all platforms.

Step 3

Cross-Platform Development & Integration

Using frameworks like React Native, Flutter, and .NET MAUI, we develop robust apps with smooth backend integration and scalable architecture that support growing business requirements.

Step 4

Testing & Quality Assurance

Comprehensive testing ensures your application runs smoothly, remains secure, and performs reliably and consistently on different devices and operating systems.

Step 5

Deployment & Launch

We manage the complete deployment and launch of your application, ensuring a smooth rollout to all platforms with no major disruptions for users at any stage.

Step 6

Maintenance, Updates & Support

After launch, we provide continuous monitoring, updates, and support to keep your application optimised, secure, and fully up to date as your business and user needs evolve.

Industries We Serve

Frequently Asked Questions

We use frameworks such as React Native, Flutter, and Xamarin for cross-platform development, selecting the most suitable option based on your app’s performance, scalability, and maintenance needs.

Most cross-platform apps take anywhere from one to four months to develop, depending on the features and complexity. The delivery is even faster if a single codebase is used.

Cross-platform apps reduce development costs, accelerate time to market, and simplify ongoing maintenance, making them a practical and cost-efficient choice for most businesses.

We build cross-platform apps for businesses of all sizes, from startups to enterprises across industries including healthcare, finance, retail, education, logistics, and on-demand services.