Mobile Developer

Let's talk about what it means to be a mobile developer at Bitrock with Fabio Cirruto. In this interview, Fabio will give us some interesting insights of his role.

Can you explain your position and skills required to excel?

Essentially, I design, develop and maintain mobile applications for our customers. Throughout my career, I have realised that making mistakes is a necessary part of the process; the only way to improve and find a solution that better meets the customer's needs is to try and try again, without giving up when the going gets tough. Another key skill that anyone who wants to be a mobile developer needs to have is a creative problem-solving mindset that allows you to find the best way to achieve your goal.

How is your relationship with colleagues?

I work remotely, so I haven't had many opportunities to spend time with my colleagues outside of work. However, I have had several opportunities to meet other Bitrockers over the past few months, such as the Group Convention and the Christmas party. Apart from these company events, I really appreciate the weekly virtual coffee break organised by my team, during which we can chat and we get to know each other better.

What is the most significant achievement in your career?

I'm now working on a project with a new client, and thanks to me (and my small talk) a new opportunity to work together has arisen and a new project is about to start!

What do you like most about your job?

I get bored easily and I need a constant challenge. The most satisfying aspect of my job is the possibility of constant change and the opportunity to learn and try new projects.

What's your favorite way to relax and unwind after a busy week?

One of the challenges of my job is its sedentary nature, so after a week of developing and sitting in front of the PC the best way to relax, unplug and maintain well-being keep is physical activity. Especially at weekends, I try to combine this with another passion: travelling. In spring and autumn I like to climb the rocks of Lecco, in winter I like to ski the slopes of Northern Italy and in summer I like to try (and fail) some tricks on a wakeboard.

What’s your go-to song for boosting productivity?

This is a challenging question as I listen to every genre of music imaginable, from legendary rock bands to new generation trap, from hardcore rap to pop love songs and even cartoon theme songs. But to give you an answer, the song that stimulates and inspires me more than any other is "No Man No Cry" by Jimmy Sax. This song plays in my head and in my headphones every time I find the perfect solution and need to turn it into code!

Who is a source of inspiration or guidance for you?

Even though I'm growing up, I'm still basically Fabiolino with a nerdy heart and Master Yoda for inspiration, because after all… it's really true: "NO! Try not! DO or DO NOT, There is no try".

What would you recommend to someone who wants to follow a career path similar to yours?

After graduating, I had the choice of joining a large company, where I would probably have little autonomy and freedom, or joining a startup, where I would have the opportunity to grow and learn by making mistakes. Guess what I chose!

The main advice I would give to anyone who wants to do what I do is to look for a job in a corporate environment that leaves room for people and guarantees opportunities to learn and grow professionally, like Bitrock does.

Thanks to Fabio Cirruto, Mobile Developer at Bitrock, for this interview.

Ready for the next episode in our journey to discover our team's key roles? Continue reading our Blog and be sure to follow us on our official Social Media channels!

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Mobile App

Mobile applications are softwares that run on mobile devices such as smartphones, tablets, etc. Developing a mobile app is a great way to have your clients always connected one tap away from your business. With a tool like this you could open new roads to help your customers with your product anywhere they are, create more engagement and understand better what they like most by collecting some analytics.

Do you want to learn more about our Mobile App Development solutions? Visit our dedicated page and submit the form. One of our consultants will get back to you right away!

Not every app is built in the same way

A mobile app can be built in different ways, it all depends on what the software aims to do and it is never an easy choice nowadays. Let's see what kind of mobile app development approaches exist at the moment and understand better their main differences by looking at pros and cons of each.


A native mobile app is a software built for a specific platform, iOS or Android, by using the tooling system provided from Apple or Google respectively.

These kinds of apps are the most powerful, the code is optimized to work on a specific operating system in order to achieve the best performance. By using the native tooling systems with their latest updates the UI/UX can be developed to follow all the styling guidelines provided by Apple and Google more easily for the developers. This can still be the best option for apps that need to do a lot of computation or require a deep implementation of the system APIs like Bluetooth, GPS, NFC, and so on.

Looks everything cool but... where is the catch? Well, unfortunately these kinds of apps are the most expensive since both iOS developers and Android developers are needed to build and maintain the two apps completely separately and different from each other.

iOS developers use XCode as the main IDE (integrated development environment) and the main languages used are Swift and Objective-C, meanwhile for Android apps developers can use Android Studio writing Kotlin and Java code.


In the last few years a new technology came from JetBrains and it is called Kotlin Multiplatform (KMP).

This is a new way of developing apps where the developers can share part of the code written in Kotlin between the iOS and the Android app keeping the code native thus with the same performances (or so) of a native implementation. Usually developers share some Business Logics and the communications with servers or local storage and leave the UI/UX development natively. Of course depending on the project, more or less modules should be shared between the two apps. A good architect will choose the best structure to build the project.

From an android point of view the app development is close to a native app while for the iOS developers the UI will be written in Swift, as always, but it will connect to some logic written in Kotlin.

The Kotlin Multiplatform framework will compile both apps on native code for you. Looks like magic right? Yes, it does, but reality is not all about pros with KMP. You will still need both iOS and Android developers to build and maintain the apps, plus the framework is still new and there are some technical downsides with this approach. Depending on the project, a native approach could turn out to be even less expensive than a KMP one, especially when it comes to keep updated the project itself.

We at Bitrock love to explore new technologies, we already used this framework on some projects, and we're looking forward to seeing if this will be the new standard of mobile app development in the future.



Cross-Platform apps are built in a different way compared to the Multiplatform ones. At the moment there are two main frameworks on the top level of a cross-platform approach: Flutter and React Native. With both frameworks the developers can write the code only once for the two apps, usually reducing the cost and time to market for the clients. React Native is the older one, it was started back in 2015 by Facebook and made a huge step forward in Cross-Platform development reaching performances close to a native app. After that a new player joined in 2018: Flutter, built by Google. It rapidly gained popularity because of its stunning performances and for how quick it is to build beautiful UIs with that framework.

Under the cover, React Native is close to ReactJS, the UI is built with component blocks and the main language is Javascript. On the other hand, Flutter has widgets to compose the UI and the main language is Dart. Each RN UI component is chained to a native one for the specific platform, meanwhile for Flutter each component is drawn from scratch by the Flutter team and rendered on a canvas with Skia Graphics Engine.

They are both really great frameworks to build cross-platform apps with performances really close to the native implementation but with less expenses. 

The downsides of both frameworks are related to your project needs. These are technologies relatively new and we cannot say for how long they will be updated and maintained. If the framework will be shut down, it will not be as easy as the approaches above to work with deprecated technologies or, in the worst case, restore the app with a native implementation by rewriting it from scratch.

Our feeling is that these kinds of approaches are here to stay and they are and will be the best choice for a lot of beautiful projects.

Flutter and React Native

WebApp and PWA

These are the kind of websites that act like mobile apps when opened from a browser on a mobile device.

PWA (Progressive Web Application) are WebApp with superpowers, they can be used to interact with part of the device hardware as well and can perform different things based on which device is running the software.

Usually they are not available on the App Store and Play Store, even though for Android something started moving with TWA.

These kinds of apps are usually written with web languages: HTML, CSS and Javascript, like a normal website. At the moment these are the apps with the lowest performance but they are easier to maintain and release since there are no updates needed throughout the official stores, sometimes app updates can be tricky to achieve and with these solutions we avoid that completely.

PWA (Progressive Web Application)


Native vs Multiplatform vs Cross-Platform vs WebApp.

What is the best development approach for your app in 2023?

“It depends!” as developers love to say.

In choosing the right app, a lot will rely on your project, needs, goals, target audience and mostly on the budget you decide to invest.

We at Bitrock would love to hear more about your project idea to support you with all our expertise and experience on this jungle of code and frameworks. In the meantime, we will keep us updated on what's coming next and we are excited to see how the future of mobile apps will look like.

Special thanks to the main author of this article: Emanuele Maso, Mobile Developer at Bitrock. 

Do you want to learn more about our Mobile App Development solutions? Visit our dedicated page and submit the form. One of our consultants will get back to you right away!

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Mobile Application Development

Interview with Samantha Giro, Team Lead Mobile Engineering @ Bitrock

A few months ago, we decided to further invest in Bitrock’s User-Experience & Front-end Engineering area by creating a vertical unit dedicated to Mobile Application Development.

The decision stemmed from several inputs: first of all, we perceived a high demand from organizations looking for Professionals specialized in mobile app development that could support them in their digital evolution journey. 

Secondly, we already had the chance to implement successful projects related to mobile app development for some of our clients, primarily in the fintech and banking sectors.

Furthermore, since we are a team of young entrepreneurs and technicians continuously looking for new opportunities and challenges, we deeply wanted to explore this area within Front-end engineering, which we found extremely interesting and could perfectly fit in the 360° technology consulting approach offered by Bitrock.

Creating a unit specifically dedicated to mobile programming was thus a natural step towards continuous improvement and growth.

We are now ready to delve deeper into the world of mobile application development by asking a few questions to Samantha Giro, Team Lead Mobile Engineering at Bitrock. 

What is mobile application development? And what are the main advantages of investing in an app?

Mobile application development is basically the set of processes and procedures involved in writing software for small, wireless computing devices, such as smartphones, tablets and other hand-held devices.

Mobile applications offer a wide range of opportunities. First of all, they are installed on mobile devices - smartphones, iPhones, tablets, iPads - that users can easily bring with them, anywhere they go. 

It is thus possible to use them in work environments, such as manufacturing industries (just think about when workers control loading and unloading operations from a single device), to manage sales workflows, or events. Many solutions work even offline, allowing people to use them continuously and without interruption.

Moreover, mobile apps give users the opportunity to interact with the product readily and effectively. Through a push-notification campaign, for instance, it is possible to activate typical marketing affiliation mechanisms. These allow companies to run advertising campaigns and retain clients through continuous usage - for example by inviting users to discover new product functionalities or other related solutions.

Mobile technologies can also be associated with other external hardware solutions through bluetooth or Wifi connection, thus widening the range of usage possibilities.

The sensors and hardware of the device, such as the integrated camera, increase the number and type of functionalities that a product can perform. This brings great advantages and comfort to our daily lives: for example, if you need the digital copy of a signed paper, with the camera of your mobile device you can easily scan it and have the document online in real-time, ready to be shared with other users.

Last but not least, the interaction and integration with AI systems, augmented reality and vocal assistants grant easier access and an up-to-date user experience. 

Users can for instance “rule” their houses remotely: as we all know, nowadays we can easily turn on the lights of our house or activate the warning system simply by accessing an app on our mobile device. 

What types of mobile applications are there?

There are different ways to develop a product dedicated to mobile: native, hybrid and web applications. 

Native mobile app development implies the engagement of resources dedicated to devices that use Android as an operating system and other resources that use Apple systems. There are no limits to the customization of the product, apart from those defined by the operating systems themselves (Android and iOS). 

Native apps have to be approved by the stores before being published, and require a different knowledge base, since each platform has its specific operating system, integrated development environment (IDE) and language that must be taken into account.

They imply higher costs in terms of update and maintenance than hybrid apps since they usually require at least two different developers dedicated to the product. 

Native apps can take full advantage of the hardware with which they interact, and they are usually more performing and fast compared to their respective hybrid versions. Also the final dimension benefits from the fact they do not have any framework that converts them. Compatibility is always granted over time, net of updates that need to be executed following the guidelines issued by the parent company.

Thanks to specific frameworks, hybrid mobile app development allows the creation of applications for both operating systems with one, shared code, thus reducing maintenance costs. Development is subjected to the limitations of the framework and to its updates, which must be frequent and follow the native ones. For complex functionalities they still need a customization of the native part. Lastly, they must undergo the approval from the stores before being published. 

The most popular development frameworks are React Native and Flutter.Based on Javascript, React Native is widely used and known by many web developers. It is highly compatible with the development of hybrid applications, and it is highly fast and performing. Its nature as an interface for native development

makes applications less performing compared to the purely native ones; nevertheless, it is a good product since it facilitates the sharing of the code also for web applications. The community is wide, and the high number of open-source libraries makes up for any functionality you may need to integrate. It has two different development modes that allow to create applications entirely in Javascript or with the possibility of customization on native.

Flutter is a more recent product compared to React Native, and it is based on the Dart language developed by the Google team. The ease of the language and of the tool is convincing more and more developers to use it. Differently from React Native,  Flutter’s components do not depend on native: for this reason, when the operating systems are updated, the product keeps on functioning well. The plugins for specific functionalities, such as localization and maps, are created and managed from the Google team, which grants truthfulness, compatibility and constant update. Dart, indeed, is still a little-known language compared to Javascript, which requires a very  specific knowledge in the field.

Last but not least, there are web applications, which are similar to mobile apps, but are developed by using web technologies. They are not installed through stores, but as a website: the user can add a short link in the mobile screen and launch the web application. In this case, offline usability is limited and not granted. Moreover, it is not possible to take full advantage of the hardware resources. 

How is a mobile app created? And what are the most widely used programming languages?

The development of a mobile app generally starts with the study of its key functionalities and an analysis of what the customer needs, along with the creation of a dedicated design. Another preliminary step consists in working on the user experience: for this reason, a close collaboration with an expert of UI/UX is essential.

When all this is defined, the team decides what the best technologies and solutions to develop that specific application are. Then, developers write code, recreate the design and functionality, and run some tests to prove that everything works properly. 

Once the whole package is created through the system and approved by the customer, it is published on the different stores (Google or Apple) - of course, only if that’s the case. 

Let’s now have a quick look at the main programming languages.

If we’re talking about hybrid development, the main tools are Ionic (JavaScript), Flutter (Dart) and React Native (JavaScript). As for native apps, the top iOS development language is Swift or, alternatively, the previous language Objective-C. While the most popular Android development language is Kotlin, some still use Java. Of course, developers must rely on an IDE. Although there are many other alternatives, the above mentioned can be considered as the most widely used.

What are the main market differences compared to website development?

Let me start by saying that websites will never die, for the simple reason that when you need information rapidly and for a very specific circumstance, the product or service’s website is always available. However, websites cannot take advantage of all the instruments and hardware available for a mobile application. 

Mobile apps grant the memorization of a certain amount of data - this is something that a website cannot always provide (unless you have your own account and you always work online). 

They can access information quickly from hardware such as an accelerometer, a gyroscope and others. And other instruments enable the adoption of strategies for customers’ retention (even though nowadays there are push notifications for websites, too). With a mobile app, it is thus possible to grow customer loyalty with specific features and functionalities.

Furthermore, mobile applications are specifically designed to grant ease of use, while websites traditionally provide a different kind of usability. 

Most of the time, web and mobile can perfectly work together (see, for example, what happens with Amazon: users can buy an item via website or by using the mobile app); other times, a mobile app can “overcome” its web counterpart, especially when users have to manage specific things or data, or use specific technologies. For example, you will hardly do biometric authentication via a website.

At Bitrock, we always put clients’ needs first: the creation of the brand-new Mobile Application Development unit within our User Experience & Front-end Engineering team has the goal to widen our technology offering in the field. In this way, we can provide a broad range of cutting-edge, versatile and scalable mobile technology solutions to a variety of markets and businesses. 

We always collaborate closely with our clients to plan, create, and deploy solutions that are tailored to their specific requirements and in line with their contingent needs.

If you want to find out more about our proposition, visit our dedicated page on Bitrock’s website or contact us by sending an email!

Thanks to Samantha Giro > Team Lead Mobile Engineering @ Bitrock

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