A Comprehensive Guide to Cross-Platform Development Success

Understanding Native & Cross-Platform Development

There are two ways to develop an app: native or cross-platform. Native apps are built using the operating system's native language, which gives them smooth, top-tier performance. But they come with challenges, like needing experts in different programming languages to build apps for multiple operating systems. Plus, after the app is launched, it requires updates and system maintenance, adding to the ongoing costs.

For startups, cross-platform development is a great way to save time and money while getting a market-ready app faster. The initial version of your app acts as a testing phase, where you can see what works and what needs improvement. And with modern frameworks like React Native, the performance can rival native apps.

From testing performance to figuring out what's accepted and what isn't, you can continue iterating by launching an MVP and using it as a base for upgrades and new features.

Many businesses or people looking to build a mobile app get stuck choosing between the two approaches. If you're inexperienced, though, we suggest steering clear of native development. We recommend this to new startups and professionals for many good reasons. It doesn't mean cross-platform is better than native, but it's an excellent option that's easier to manage. Now, let's move on to the other aspects of cross-platform development.

Why Startups Should Choose Cross-Platform Development 

Cross-platform development is quicker and more cost-effective because the app can be developed faster with a single codebase that works across both Android and iOS platforms.

In this kind of development, developers use platform-specific SDKs, like the Android SDK and iOS SDK. Frameworks such as React Native (by Meta), Flutter (by Google), and .NET MAUI (by Microsoft) help streamline this process.

Many popular apps today—Instagram, Skype, Walmart, Airbnb, Google Ads, The New York Times—are built using cross-platform technologies with the help of these frameworks.

So, why choose cross-platform development?

For one, it's easy to find developers. Frameworks like React Native let you create apps that feel native but use web technologies. This means a single team can manage your entire app with one codebase. You can keep both your Android and iOS versions in sync.

Cost is another major factor. With a smaller codebase and only one to maintain, development costs drop. Plus, you can build apps faster with cross-platform development. This approach saves you both time and money.

If you're looking for mobile app development, you don't have to learn multiple technologies or the intricacies of iOS-specific languages. A multifaceted approach that requires deeper expertise and more time could be more challenging.

The best approach is to go cross-platform first. Study the market, understand your users, and then launch once you know what's working and what isn't. The foundation should always be cross-platform.

When built using best practices, cross-platform apps can match the performance of native apps. It checks all the boxes—cost-effective, fast development, and easy to build.

Cross-platform development helps you develop apps on time, ship new features quickly, and iterate without delay.

Performance might be a concern for some, but with well-known frameworks and expert developers, you can create a native-like experience. Next, we'll dive into the best technologies for building cross-platform mobile apps. We'll cover a well-rounded overview of cross-platform development technologies.

Best Technologies to Develop Cross-Platform Mobile Apps

There are so many options out there today that can help you build top-quality cross-platform mobile apps. But keep in mind there's no one-size-fits-all solution, and you'll still need to make trade-offs between development time, performance, and more. 

We've put together a balanced comparison of different frameworks to give you a better idea of which one works best for which type of development.

This question is still half answered because choosing the right technology ultimately depends on you and your team's expertise. Whether you're outsourcing to a React Native development company or building an in-house team, there are a few things you'll need to consider before picking the right technology stack.

1. Team expertise

You'll probably find React Native developers easily since it uses JavaScript, which is everywhere and one of the most popular web development technologies. But when you're building an app with Flutter, you'll need a specific skill set – Dart developers, which Google says is faster than other competitors. Flutter is built by Google, and they use the Dart programming language exclusively. Make sure your software engineers are skilled enough to write the program in the respective development language. And if you're short on resources, React Native might be a good choice.

2. Framework support

PhoneGap once used to be a go-to option for mobile app developers but eventually faded out. Titanium was another example from the 2010s that saw a similar decline. These frameworks lost traction for various reasons. Nowadays, React Native, Flutter, and, more recently, Kotlin Multiplatform by JetBrains have taken over. Out of these, React Native stands out as the most mature, and, in terms of popularity, it's the second most widely used framework for cross-platform mobile app development. Backed by Meta, React Native has evolved significantly over the years.

Why is React Native the go-to Choice?

When it comes to maturity, React Native definitely takes the lead, having been around for almost a decade. All these factors matter when selecting the right framework, and we've put together a detailed blog on how to pick the best tech stack for mobile app development. 

Cloud platforms can be easily integrated with React Native. Cloud integration will allow you to add functionality and features such as authentication, real-time databases, storage, and much more. The most popular cloud services include Firebase, AWS, and Google Cloud, which provide SDKs and APIs that can be easily connected to a React Native app.

These integrations add features like push notifications, user authentication, and use of the cloud without reinventing the wheels. More and more, simple tools such as React Native Firebase make cloud integration even simpler as it streamlines the process during development.

And let's not forget the strong community support. As of the writing of this, it has over 120k stars on GitHub and more than 2k contributors, which is a big plus for scalability. Plus, it's based on JavaScript, which is another advantage.

What Are the Core Features to Build a Winning App?

If your app doesn't meet the user's needs or expectations, they probably won't stick around, and your app could end up on the forgotten list.

Research shows that 90% of users stop using an app within 30 days of downloading it. 

Now, this isn't always because the app was poorly developed, but if your app doesn't offer something more than your competitors, you might have to start paying to attract more users. Speaking of apps, here are the features you can't afford to skip in 2025.

1. User friendly design 

Your first impression comes from the UI because performance and other aspects come later. The first thing users notice is how user-friendly the design is. It should have the essentials: easy navigation, an eye-catching look, and consistency across devices. A well-designed UI doesn't mean it only looks good; it has flawless performance. It shouldn't make users learn the interface, and it has to be optimized for small screens. There are so many things to keep in mind when designing the UI/UX of a mobile app. 

It should also represent your brand's identity. You get to choose the typography and colors, but everything, from the text to the icons, should work together smoothly. Learn how UI/UX plays a crucial role in developing a successful mobile app. 

2. Fast load speed

The speed of an app is important. In fact, more than half of users will abandon their cart if there's a delay of three seconds, which shows just how crucial speed is. With the right technology for mobile app development, you can achieve high performance and speed. App speed directly affects user retention and helps attract new visitors. Ideally, your app should load in under five seconds because users expect that today, and they have plenty of other options.

3. Security

As digital literacy increases, people expect their data and privacy to be protected. If there's even the smallest concern about that, they won't think twice about ditching the app. More people than ever are using mobile apps that were once the domain of desktop apps. These apps store huge amounts of sensitive information, which makes it essential for developers to ensure that the app and data security are rock solid. One report showed that over 70% of apps have at least one security vulnerability, even though developing these apps can cost hundreds of dollars. Security isn't an optional item but an outright need. Without it, you won't find long-term success.

4. Customer support 

A survey from Coveo, a SaaS company, found that 56% of customers quietly switch to another service provider without leaving a negative review, all because of a poor customer service experience. Zendesk's benchmark data also shows that 3 out of 4 customers prefer spending more time with a service provider if they have a good customer experience. To put it simply, customers should be able to reach out to you easily, without too much effort. You can either set up a communication channel within the app or offer social media support, which users actually prefer over the traditional lengthy email process.

5. Push notification 

Both apps and web notifications are great for getting users to check out your new offerings, but users are looking for more personalization. That's where AI development comes in. With hyper-personalization, you can send offers and details tailored to different user segments.

In fact, 28% of customers who click on a notification are more likely to make a purchase. Plus, you can directly target customers with real-time offers. This feature can really help improve user retention.

6. Scalability 

A lot of companies struggle with building scalable apps because they focus too much on cost when choosing the technology. Sure, you might develop a great app quickly, but if it doesn't evolve or integrate well with changing tech, you'll either have to start over or face huge costs just to modernize the app.

React Native is really helpful for building scalable apps, and there are a few key reasons for that. First off, having just one codebase reduces complexity. This means developers can spend more time improving scalability by focusing on more complicated issues.

It's component-based, and its components are modular and reusable, making it easier to add new features. Hot reloading also speeds up development, allowing developers to tweak the app on the fly.

It's also popular because of the libraries it uses, which come from Meta ReactJS. These libraries provide advanced UI elements, so developers can build more sophisticated app UIs with less custom coding.

Tech Stack Considerations for Mobile App Development

The shift from desktops to smartphones has really driven a major tech change over the past two decades. There's been a big push to make smartphone apps smarter, with capabilities once seen only in desktop applications. Because of that, many technologies and services are now mobile-first.

For newcomers, picking the right tech stack is key when it comes to cross-platform development. While the whole technical side of things is too much for a single blog post, we've got a detailed guide in another post on how to choose the right tech stack for mobile app development. But to make it simple, we'll break down a few key steps and what aspects of mobile app development you need to understand when choosing the right tech stack for cross-platform development.

Choosing the right tech stack means better scaling, improved security, and more efficient development. Plus, it impacts speed and costs.

1. Front end 

This is the part of the app that end users actually see, and you can build it using popular cross-platform frameworks like React Native, Flutter, or Ionic. We've already compared when to choose one over the other. React Native has been used by many big-name apps like Facebook, Instagram, Walmart, Discord, and Flipkart, helping them build a ton of front-end features. Some apps have really leaned on React Native to speed up development and make coding faster. Flutter's another strong option you might want to consider, but you'll need Dart experts to work with it. If you have C# professionals, .NET MAUI could also be a good choice.

For React Native, developers have to have in-depth knowledge of web development technologies like JavaScript or TypeScript, as these are the primary languages used in the framework. A strong foundation in React is essential for building UI components. Developers should also be familiar with integrating native modules, which may require knowledge of Java or Kotlin for Android and Swift or Objective-C for iOS, especially when building custom features or integrating native code into the app.

In the case of Flutter, the framework uses Dart as its primary language, so developers need to have a solid understanding of Dart for both app development and building UI components. While Flutter provides a rich set of pre-built widgets, developers should also be comfortable with native code when creating custom platform-specific features, requiring familiarity with languages like Java or Kotlin for Android and Swift for iOS. This expertise ensures that developers can effectively leverage the cross-platform capabilities of Flutter while tailoring features to each platform's needs.

For MAUI (Multi-platform App UI), developers need to be proficient in C#, as it is the main programming language for writing business logic in this framework. XAML is used for UI design, so developers should be comfortable with both the layout and user interface design patterns specific to this technology. MAUI's cross-platform capabilities extend to Android, iOS, Windows, and macOS, so developers must also have knowledge of platform-specific APIs to ensure smooth integration and performance across all supported platforms.

2. Backend 

If the app needs to store data, manage user authentication, interact with databases, or handle real-time communication, a backend is required.

When building cross-platform apps with frameworks like React Native, Flutter, or .NET MAUI, the backend technologies can vary depending on the app's needs.

For React Native, Node.js is commonly used on the back end. Firebase and MongoDB are also popular among React Native developers.  

Flutter essentially means the backend can use any technology such as Node.js, Python (using Django or Flask frameworks), or even any cloud service like Google Firebase.

.NET MAUI combines with various backend technologies like ASP.NET Core or any Azure service for smooth integration in enterprise environments. Each framework offers flexibility in backend choices and diverse options for developers for specific needs.

3. Hosting 

Cross-platform apps built with React Native, Flutter, or MAUI often require hosting for a few reasons:

If the app relies on APIs or backend services like it requires data and has processing capabilities, hosting is required. If you are going to upload images, videos, or downloadable content, your cross-platform app will require hosting. Are you going to add features like login and user profiles? It will need services from Popular Technologies for cross-platform development.

Here's a rundown of some popular cross-platform app development frameworks that let you build apps for multiple platforms from a single codebase.

Popular Cross cross-platform development Frameworks

1. Xamarin

Xamarin is an open-source framework from Microsoft. It uses C# and .NET for Android, iOS, and Windows app development; it is actually a multiplatform framework. It offers native user interfaces and high performance. However, it can be tricky for graphics-heavy apps and doesn't have full access to all mobile APIs.

• Pros: C# integration, strong community, and 75% code sharing.

• Cons: Limited library access, higher overhead, and more complex setup for large apps.

2. React Native

Owned by Meta, React Native uses JavaScript and TypeScript for cross-platform mobile app development. It's known for being fast to develop thanks to features like hot reloading and code reusability. However, certain features still require native code for full functionality.

• Pros: Hot reloading, 80% code reuse, fast UI rendering.

• Cons: Some native components needed, debugging can be tricky.

3. Flutter

Flutter, developed by Google, uses Dart to build fast, native apps for Android, iOS, and more. It has a rich set of widgets and is quick to develop with, but app sizes can be larger, and native APIs aren't fully accessible.

• Pros: Fast development, easy-to-learn Dart, customizable widgets.

• Cons: Limited third-party support, larger app sizes.

4. Cordova

Apache Cordova uses web technologies (HTML, CSS, JavaScript) to build mobile apps. It's great for quick app development and supports many platforms, but debugging can be a challenge, and performance isn't on par with native apps.

• Pros: Free, supports many platforms, easy debugging.

• Cons: Platform quirks and security concerns with remote code execution.

5. Ionic

Ionic is a framework built with web technologies like HTML, CSS, and JavaScript. It's ideal for hybrid apps and integrates well with tools like Angular and React. It's great for simpler apps, but performance can suffer with graphics-heavy tasks.

• Pros: UI components, Progressive Web Apps, hybrid app support.

• Cons: Slower performance for resource-heavy apps, inconsistent UX.

What to Avoid during Mobile App Development

Most developers don't plan to make mistakes, but major issues we see daily could've been prevented if the developer had known better.

Before starting your development project, take time to learn about common app development mistakes. Avoiding them will save you frustration and boost your chances of creating a successful app. If you're just starting out as an app reseller or business owner, you're in a great position. You can avoid many of the mistakes others have made before you by learning from them.

Mistake #1: Skipping Research

It's easy to jump headlong into making an app, but it is more important to take the time to research your platform and solution. Whether you're coding it yourself, using an app creator, or outsourcing, don't rush the decision. Choose wisely now to avoid future headaches.

You do not buy one on a whim. Do your homework: read case studies, check reviews, and try demos before choosing a platform or development team.

Mistake #2: Skipping the MVP

Don't jump directly to the final version of your app. Instead, start with an MVP (minimum viable product) to test the core functionality before adding extra features. Focus on what's essential.

Mistake #3: Poor Budget Management

Among the most common errors, definitely, first of all, is considering the cost of making an application. Ensure that your budget has all stages of development, including unexpected costs and changes in features. Start with an accurate estimate using tools like an app cost calculator, but be realistic about your expectations.

Mistake #4: Trying to Build for Too Many Platforms

If you're new to application development, never try to design for both iOS and Android platforms simultaneously. The budget and timelines can be quadrupled or doubled. Use one platform for your first or develop both applications at once through an app builder that doesn't require coding.

Mistake #5: Bad UI/UX Design

A poorly designed UI/UX is among the most frequently used excuses for uninstalling an installed application. Follow known patterns while navigating; focus on usability; it has to be simple, not overcomplicated. If people can't easily move through your application, they go away.

Mistake #6: Inadequate Testing

Testing is not a one-time process. It is an ongoing process during development. Create a specific testing procedure and collaborate with both in-house and outsourced experts. Plan regular testing to ensure your app works smoothly.

Mistake #7: Overloading with Features

It's tempting to add every possible feature, but this will increase your budget, slow down your app, and create performance issues. Stick to the core features that make your app function smoothly, and leave the extras out.

Mistake #8: Copying Your Mobile Website

An app shouldn't just be a mobile version of your website. Apps offer unique features that websites can't, so make sure your app provides a different, enhanced experience. Focus on what the app can do that the website can't, and give users a reason to download it.

By keeping these common mistakes in mind, you can avoid unnecessary setbacks and build an app that meets user expectations.

Mistake #9: Poor Communication

There must be clear communication. Whether you are contracting an in-house team or an external developer, be sure that each member of the team understands what is going on. With regular updates, feedback sessions will keep things going correctly.

Mistake #10: Choosing the Wrong Development Team

Picking the wrong team can ruin a great idea. Don't make the mistake of outsourcing to a cheap freelancer who doesn't deliver. Find a team that offers the support and resources you need to succeed. For resellers, this platform is your entire product.

Mistake #11: Forgetting About Updates

App development isn't over at launch. Ongoing updates ensure bugs are rectified, features are improved, and the app can remain compatible with the latest operating systems. Ensure your budget includes ongoing maintenance or work through a platform offering maintenance.

Mobile App Security Best Practices 

Mobile apps are a major link between businesses and users, so they handle sensitive information that needs to be kept safe. If security isn't up to par, it can lead to data breaches, putting users at risk. There's also more pressure now, with regulations pushing for better data protection—failing to comply can cost a lot in fines. 

Strong security practices not only help build trust with users but also protect your brand from reputational damage. With the rise in cyber-attacks, it's important to adopt best practices to safeguard your app. A single vulnerability could expose your app to serious threats.

Cross-platform apps rely a lot on third-party services and technologies, so security becomes a big concern. There are some standard ways to write code, what we call best practices. Here are a few, but if you want more detailed info on how to build a secure cross-platform app and what to keep in mind to make sure security isn’t compromised, check out our blog – mobile app security best practices.

1. Secure Your Code

2. Only use well-vetted libraries, and update them regularly.

3. Use multi-factor authentication (MFA) to add extra security layers.

4. Regular Patches & Updates

5. Store as little sensitive data on devices as possible

6. Always use encrypted connections 

7. Regularly test your app for vulnerabilities

8. Use real-time monitoring tools 

9. Ensure apps are downloaded from trusted sources like official app stores.

10. Use Access Controls

11. Encrypt Sensitive Data

12. Manage Sessions Securely

13. Secure your APIs with measures like rate limiting and data validation.

React Native offers a number of built-in security features to help protect mobile applications. These include tools for secure data storage, encryption, and safe communication between the app and servers. Here's how it works:

1. Secure Data Storage

React Native supports secure storage mechanisms like Secure Storage to protect sensitive information, such as user credentials, on the device.

2. Data Encryption

You can easily integrate libraries that handle encryption for both data at rest (e.g., AES encryption) and data in transit (e.g., SSL/TLS).

3. Authentication

React Native allows integration with popular authentication methods such as OAuth2, JWT, and multi-factor authentication (MFA), which add layers of protection for user identity.

4. Network Security

React Native's built-in networking APIs can be used with HTTPS to ensure encrypted communication between the app and servers, preventing man-in-the-middle attacks.

5. Secure Code Practices

While React Native itself doesn't obfuscate code out-of-the-box, you can use third-party tools like react-native-obfuscating-transformer to obscure your JavaScript code, making it harder for attackers to reverse-engineer.

6. Integration with Third-Party Security Tools

React Native seamlessly integrates with third-party tools like mobile threat defense platforms, vulnerability scanners, and SDKs for enhanced security. Popular tools like Firebase, Auth0, and others offer additional layers for user authentication, encryption, and fraud detection.

Compliance in App Development

If you're planning to build an app for your healthcare operations, there are several compliance requirements like HIPAA and others you'll need to keep in mind to ensure the app is secure and sensitive data is stored safely. Regulated industries like healthcare and fintech face strict scrutiny—not just in terms of what features you can add but also the compliance standards you need to follow and how you can improve patient engagement. On top of that, there are many complex regulations you'll have to navigate. To handle this, you can hire a React Native development company that already has experience in the healthcare industry to build a successful app.

From our experience building multiple apps, we've found that React Native is an amazing technology for anyone looking to develop a cross-platform mobile app. It comes with everything developers need to build secure, compliant apps.

Conclusion

For businesses just getting started, cross-platform app development is a smart way to test the market and see how consumers respond before diving into full native development. While there are other options out there, React Native gives you native-like performance.

As a React Native app development company, we offer mobile app development services across various industries, from healthcare to manufacturing. Our team of expert developers has built over 100 cutting-edge products for businesses around the world.