Cross-Platform Mobile App Development 

Reach users on iOS and Android with our cost-effective, scalable cross-platform mobile app development services. With faster time-to-market, lower development costs, and a smooth user experience, our approach ensures you get the most value from your investment. 

A single codebase simplifies updates and improves long-term support.  

We typically recommend Flutter for cross-platform app development, as it offers a great balance of performance and cost-efficiency. We also work with .NET MAUI, Unity, and other frameworks to match your project’s needs.

Let’s discuss your app!
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Our Services

At Diversido, we specialise in cross-platform mobile app development services using Flutter, Unity, and .NET — helping clients build fast, scalable, and user-friendly mobile apps for iOS and Android.

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Mobile App Development

Building scalable, intuitive cross-platform mobile apps for iOS and Android with Flutter, Unity, and other frameworks.

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Third-Party Integrations

Integrating cross-platform apps with APIs, payment gateways, analytics platforms, Google Fit, Apple HealthKit, EHRs, and CRMs.

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SDK Development

Developing custom SDKs for iOS, Android, and cross-platform apps using Flutter, Unity, and .NET MAUI.

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Gamification

Boosting user engagement with gamification features — from full-scale serious games to integrating gamified elements into existing mobile or cross-platform apps.

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AI Integration

Implementing AI-driven features like custom GPTs, virtual assistants, and chatbots into cross-platform mobile apps.

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Game Development

Designing and developing interactive, high-performance cross-platform mobile games using Unity and modern frameworks.

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MVP Development

Helping startups launch fast with MVP mobile app development, lean prototyping, and cross-platform architecture.

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App Migration & Modernisation

Migrating legacy mobile apps to modern cross-platform frameworks like Flutter and .NET MAUI for improved performance and maintainability.


How We Build Cross-Platform Apps

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STEP 1

Initial Consultation

We start with a structured elaboration phase to define goals, priorities and scope before any development begins. This step helps align the cross-platform mobile app development process with your business objectives and target audience.

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STEP 2

Platform & Tech Selection

We choose the best tech stack for your app — prioritising compatibility with iOS, Android, and web platforms. We often recommend Flutter for its cross-platform capabilities but may use other frameworks if better suited. We also define the architecture and prepare a C4 diagram.

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STEP 3

Product Design

Our design team creates a consistent, user-friendly interface with clean layouts and responsive elements. The goal: intuitive mobile app design that reflects your brand identity across all platforms.

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STEP 4

Development & Integrations

We build your app using the selected technologies and ensure seamless integration with third-party APIs. Throughout the process, we prioritise performance, security, and scalability.

STEP 5

Mobile QA Testing

We test your app on a wide range of real devices and platforms to ensure full compatibility. Our Test Device Lab covers various OS versions, sizes, and manufacturers to catch bugs and polish the app before launch.

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STEP 6

Deployment & Support

We launch your app on the App Store and Google Play, handling all compliance steps. After launch, we provide updates, monitor performance, and add new features as needed.


Industries We Work With

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Digital Health

We develop cross-platform healthcare apps that meet HIPAA and GDPR compliance. Our solutions securely connect healthcare providers, patients, and wellness platforms with medical device integration, health data management, and third-party API support.

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IoT

We build IoT apps for wearables, wireless devices, and industrial sensors that work seamlessly across platforms. Whether you need a custom SDK or full ecosystem integration, we ensure your IoT app is reliable, scalable, and compatible with various IoT protocols and data systems.

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FinTech

Our FinTech mobile apps prioritize security, speed, and compliance. We create scalable solutions that support secure transactions, user authentication, and regulatory compliance — helping your financial product grow with your business.

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Micromobility

We build mobile apps for micromobility platforms like e-scooters and bike-sharing, ensuring smooth communication between IoT devices, backend systems, admin dashboards, and user apps. Our cross-platform solutions support real-time tracking, fleet control, and seamless user experiences.

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EdTech

We build cross-platform EdTech apps designed to deliver interactive and personalized learning experiences. Using AI-driven assessments, gamification, and mobile-first design, our educational solutions support remote learning, boost engagement, and work across all devices — mobile, tablet, and desktop.

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Flexibility

From a part-time mobile app developer to a full-scale cross-platform development team — we scale based on your project needs and growth.

Transparency

Work directly with our mobile development team through agile workflows, real-time updates, and zero hidden costs — just full visibility and collaboration.

Expertise

With over 11 years of experience in full-cycle app development, our experts bring 5+ years average expertise in Flutter, .NET MAUI, React Native, and other top frameworks — all backed by a data-driven approach.

Industry Experience

80+ successful projects in Digital Health, EdTech, IoT, and FinTech. We build secure, scalable, and compliant apps with seamless performance across iOS, Android, and web platforms.

Tatiana Kobzar, CEO of Diversido, seated in an office setting. She is wearing a blue blazer, smiling confidently, and positioned next to a colleague in a vibrant pink blazerTetiana Kobzar

Tools We Use

Flutter

Our preferred cross-platform mobile framework. Flutter enables fast, efficient development of high-performance apps with native-like experience on both iOS and Android. Ideal for startups and enterprises looking to reduce time-to-market and maintain a single codebase.

.NET MAUI

Best suited for migrating legacy Xamarin apps or building modern enterprise solutions on the Microsoft .NET ecosystem. .NET MAUI supports web, desktop, and mobile platforms — perfect for scalable and flexible app architecture.

Unity

We use Unity for building immersive, cross-platform mobile games, AR/VR applications, and 3D interactive experiences. Ideal for industries such as EdTech, healthcare gamification, and training simulations.

Our Projects

Explore real-world examples of mobile apps built with Flutter, .NET MAUI, and Unity. These case studies highlight our expertise in developing scalable, multi-platform solutions for various industries — from healthcare and fintech to education and mobility.

ClipMoney – A Digital-First Banking Platform for Businesses

ClipMoney is a modern banking solution for businesses that need to manage cash without visiting a bank. It allows users to deposit funds at secure deposit boxes and track all activity through a centralised, easy-to-use digital system.

Eatiquette – A Smart Grocery App for Ingredient-Conscious Shoppers

Eatiquette is a cross-platform mobile app that helps users make healthier food choices. It flags ingredients based on dietary preferences and simplifies nutrition labels for fast, informed shopping.

Legend of Tapatan

Tapatan is an archaic board game originating from the Philippines.

Kiwi

Fitness app which lets cutting-edge instructors directly connect with students.

See All Works

Recent Blog Posts

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FAQ

How much does cross-platform mobile app development cost?

How long does it take to develop a cross-platform app?

What are the main benefits of cross-platform mobile app development?

Can you migrate my existing mobile app to Flutter or .NET MAUI?

Is cross-platform development better than native for mobile apps?

What engagement models do you offer for mobile development?

Which programming language is best for cross-platform app development?

Can I book a one-time session with your mobile app development consultants?

How do I choose the best framework for cross-platform app development?

Can a cross-platform app be as fast as a native mobile app?

Are there hidden costs in cross-platform app development services?

Let’s Talk!

Interested in working together? Fill in the form to get in touch:

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Book a Meeting

If you are ready to have a call with us asap, feel free to book available slot here!

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Reach Us on Email

contact@diversido.io

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Give Us a Call

+44 20 4577 2752

Follow us on LinkedIn

linkedin.com/company/diversido/

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