Introduction to cross-platform app development

Application development for multiple platforms is becoming a standard in the IT industry. Having customers from many sources can be beneficial for every business, mainly if we aim for a diversified target audience – the example being international companies but not only.

Table of contents

1. What is a cross-platform app development?
2. Native app development vs. cross-platform development
3. What is the difference between a cross-platform and native app?
4. Pros of cross-platform mobile apps development
   – Cost efficiency
   – Time efficiency
   – Bigger market
   – Code consistency
5. What is the best technology for cross-platform mobile development?
   – Flutter in cross-platform development
   – React Native in cross-platform development
   – What is Xamarin?
6. Cross-platform development – yes or no?

Building native mobile apps for both Android & iOS can take a lot of time and effort. Also, these are pretty expensive solutions. That’s why technologies that allow building on one code base are gaining popularity. The purpose of this article is to discuss the topic of cross-platform app development. Let’s go!

What is a cross-platform app development?

The idea of cross-platform development is to deliver mobile applications that are suitable for more than one operating system. Thus it works similarly on all devices it is available for. It is essential to distinguish cross-platform apps from the hybrid ones. In cross-platform mobile development, native elements are used to achieve even better performance, especially when it comes to user interfaces.

There are two types of cross-platform development – one allows to be run on many platforms immediately, the other needs to be compiled for each platform beforehand. The kind of app we receive depends on the programming language and tools we use to build an app.

Native app development vs. cross-platform development

In our recent ebook, we discuss the differences between native app development and cross-platform app development. We also provide a list of pros and cons that can help decide what kind of product we really need.

We don’t want to give away too much – we recommend downloading our ebook to get some comprehensive info. To encourage you, we will give you a basic comparison between native and cross-platform mobile apps.

First of all, native and cross-platform mobile apps use completely different development tools. Programming languages and development frameworks allow them to create apps with slightly different characteristics. Each native solution has separate code for iOS, Android and other operating systems. Cross-platform development tools enable us to build software that will work across multiple mobile devices.

Both solutions have their pros and cons. In this article, we focus on cross-platform development. This approach can be universal for many brands, startups and enterprises that are looking for robust software development tools.

What is the difference between a cross-platform and native app?

That difference might not be visible when using an app. Average users probably wouldn’t be able to tell which from the mobile apps they use are native or cross-platform. That’s because they look and work almost the same. We can distinguish them by the code they were written with.

Later we will discuss particular technologies used in cross-platform development. As for native mobile development tools, the choice depends on the operating systems we are building an app for. For Android, that would be, for example, Java or Kotlin. For iOS, the most common examples are Objective C and Swift.

Pros of cross-platform mobile apps development

Cross-platform apps offer many benefits that are appreciated by business owners. They explain why this technology becomes more widespread. Let’s see what the main pros of cross-platform mobile app development are:

Cost efficiency

Of course, if you have a budget, developing native solutions won’t be a problem. But cross-platform apps are perfect for companies that want to test their product with many customers or don’t have enough money to develop native apps. Some brands will even prefer a cross-platform app thanks to its consistent code that allows them to quickly implement changes and duplicate the app for more operating systems. Also, when developing a cross-platform app, the team size is much smaller – which can be another great way to save some money.

Time efficiency

If you need an app for iOS and Android that will be finished at the same time, cross-platform can be a much better choice than native. The teams that code separately can encounter different obstacles, which will cause uneven delays. With cross-platform development, the app is coded for all the platforms simultaneously, which saves tons of time. Native solutions are more complicated and demanding, so that’s another area where cross-platform apps can win regarding time efficiency.

Bigger market

Reaching a broader target audience is simple with cross-platform development. And that’s what you should aim for with your marketing strategy because device distribution is now much more diverse than it used to be. People use different operating systems, no matter what their location is. With a cross-platform app, you can offer your product to all of them.

Code consistency

As mentioned above, the reusable code in cross-platform mobile applications is one of the most significant advantages. Building an app for iOS & Android with a consistent code base is much more effective and allows more manageable future growth of the product. It prevents delays, too – because we don’t work with separate teams that usually produce a completely different code for native Android and iOS apps.

What is the best technology for cross-platform mobile development?

Based on the current forecasts and trending frameworks, the best mobile app development tools for cross-platform environments are Flutter, React Native and Xamarin. These technologies, made by Google, Facebook and Microsoft, are still pretty fresh in the world of software development, but they already changed the industry with their possibilities.

Determining which of these frameworks is the best might be impossible, but all of them have their advantages and drawbacks. Let’s see what their features are and what they can offer when it comes to cross-platform development.

Flutter in cross-platform development

Flutter became super popular in recent years. This framework, based on Dart programming language, offers almost native experience and uses customized widgets to build amazing user interfaces.

Why is Flutter appreciated so much by the cross-platform developers’ environment? Because it offers robust performance – probably the best from all frameworks within this area of software development. We’ve published Flutter review on our blog, where one of our cross-platform developers explains why this framework is so unique and how exactly it works.

To understand better why Flutter became such a sensation, we need to analyze its functionalities. Dart, an object-oriented language, allows us to write asynchronous code as it was synchronous. What does it mean? This way, a developer can complete specific tasks while others are still not finished.

Another great thing about Flutter is it’s documentation. It is clear, intuitive and consistent – so all the devs that need to use it can quickly find what they need. That’s not always the case with older frameworks.

Building apps with stunning UI is another goal that everyone wants to accomplish. That’s because user interfaces are what people interact with. They need to be user-friendly, embedded in context and bring out the brand’s vibe. When it comes to Flutter, creating flawless UI is a piece of cake. That’s because it is based on widgets that can be rebuilt when a need for change occurs. This rebuilding process doesn’t mean we need to code everything from scratch – the framework modifies the widgets itself when it receives new pieces of information in the codebase.

Cross-platform development is easy and fun with Flutter. That’s why it’s often recommended for both iOS and Android apps. But it has competition – and it’s a strong one. On our blog you can read a thorough article on Flutter vs. React Native. Let’s see why cross-platform mobile app developers also like React Native.

React Native in cross-platform development

React Native framework has been around much longer than Flutter and it’s unquestionably one of the leading technologies in cross-platform development. It runs on JavaScript and uses UI components for interfaces.

The UI design using React Native is particularly impressive. The elements are bound to the native components that match the operating systems we are developing the app for. These components are the pillar of React Native cross-platform mobile app development.

React Native as an open-source framework released by Facebook gets constant support from the community and the brand itself. It is regularly updated and the number of libraries available to develop specific features is rapidly growing. That’s why choosing this mobile app development framework to make products for multiple platforms is a wise choice.

Implementing changes fast is what matters when choosing development tools – especially in times of pandemic or other global crises that need fast reaction time from brands. They need to propose new features in no time, so they can stay afloat no matter how the conditions in society are changing. With native mobile apps that can be extremely difficult. But not with cross-platform development using React Native. Adding new things to the existing app happens almost immediately with live reload functionality. Recompiling the application after applying changes to the code occurs almost instantly.

What is Xamarin?

Cross-platform mobile development platforms are diverse, but usually, the two mentioned above are discussed most intensely. But there are other solutions for building apps for multiple platforms – and one of them is Xamarin by Microsoft.

Xamarin apps share the majority of their codebase – so whichever operating system you pick for development, it is much less complicated. It is based on .NET framework and uses C# programming language. What’s interesting, it can connect with the native code of iOS & Android to achieve even more robust performance and provide functionalities that are available specifically for them – for example, PayPal integration or Google Analytics module.

Cross-platform development should be seamless for every operating system, including wearable devices. Xamarin supports development for Apple watches, as well as wearables based on Android. It’s universal nature is what distinguishes it among similar platforms.

User experience in Xamarin-based apps is very similar to native – and that means just positive, user-friendly and intuitive. That’s thanks to specific UI components fitted to an operating system of choice and to hardware support that allows us to make use of all the device functionalities we desire to.

The main advantage of Xamarin over other mentioned cross-platform development technologies is its code reusability. Most of these platforms are similar and have the solutions figured out in one or the other way. Choosing the right platform is a question of the available team. If you are collaborating with an experienced software house, they will definitely give you a couple of options to choose from. Also, they usually hire a pool of experts and specialists in cross-platform development, so no matter which platform they use – they will be able to achieve results for your business.

Cross-platform development – yes or no?

You should definitely consider it. In the fast-paced world where time is money and everyone has big ideas but not so often a big budget – developing complex apps for iOS, Android and all other platforms (no matter if mobile or web) is one of the elements that can bring success for your brand. Offer your customers a solution that can fix their problems, deliver your products and services, or just be something they will cherish for inspiration and entertainment.

With cross-platform development, your app can hit the market in many places around the world in no time. If you still want to educate yourself in that matter – download our ebook on native app development and cross-platform app development. It’s a comprehensive guide for everyone who is interested in mobile app development and wants to build a product that will fulfill all their business needs. Our specialists from itCraft share their knowledge and expertise to give you tons of information about our passion and our daily work – mobile apps.