Developing Mobile Applications

for All Platforms

Mobile apps have become an integral part of our everyday lives. They make things easier for us not only at work, but also at home and everywhere else. They entertain us, help us learn new stuff, allow us to look up transport connections and remember things for us. In short, they are present in almost every area of our day-to-day experience. Obviously, this means that mobile app development is also becoming indispensable in many industries.

What is mobile app 

A mobile application is software designed specifically for smart phones, tablets and other portable devices. During the development, we strive to make the most of intuitive user interface possibilities and touch control elements offered by mobile devices so that the resulting app is user-friendly and easy to navigate. Mobile app development is divided into several stages that include a pre-analysis, UX (user experience) design, UI (user interface) design, the actual development and final testing.

We like original ideas, are not afraid of programming challenges and don’t mind sitting at our computers late into the night. We will be happy to help you develop your mobile app and give you some tips on how to make profit with it.

If you’re wondering how much it’s going to cost, please read our blog article on mobile app development prices.

Types of Mobile app development

Your new mobile app can run on different operation systems. Our approach to development depends on your preferences.

Multiplatform development

Android + iOS + HarmonyOS + Smart Watch + TV

Get a universal solution for multiple operation systems in one go. For the mobile app development, we use React Native, and the source code can then be transferred to iOS, Android and HarmonyOS as well as to smart watches, TVs, or web apps. All can be easily connected with your smart home using IoT.

Each platform uses the same, reliable foundation that can be customised depending on your needs. An ideal way of saving money and getting exactly what you want. Suitable also for more complex, “mobile first” projects.

Native development

We have a specialized developer team for each operation system (one for Android and one for iOS) – this ensures that developers working on the respective app can capitalize on their expertise in the given field and are familiar with the specifics of the relevant technology. Your mobile apps are developed separately for individual platforms, without the need for any extensions or third-party services.

Native development is best suited to complex projects with large budgets or projects designed for one platform only.

Android apps

Android + Smart Watch + TV

The most widely used operating system with the largest user base requires, above all, careful testing. This allows us to achieve the most precise result.

iOS apps

iOS + Smart Watch + TV

Fans of the delicious apple will surely be delighted by our offer. Throughout the development of your app, we pay close attention to elegant design, intuitive user interface and to every little detail.

Hybrid Development

Do you need your software to run both on mobile devices and as a web app? With hybrid development this is not a problem anymore! The React Native for Web technology and “mobile first” approach allow us to design a mobile app first and subsequently create a web app with all the characteristics of a standard website layout based on it. Apart from being faster, this solution also saves you money: Instead of three different codes for three different platforms, it is enough to write just one code.

This is how we do it: The target mobile app is built on one of the platforms using just one code and for the development we need nothing more than standard technologies (HTML, CSS and JavaScript). The result is “wrapped-up” in native add-ons, so that the web app can easily communicate with all functionalities of the platform (camera, microphone, …). Hybrid development is a popular method for creating mobile apps for Android and iOS. At the same time, it is the most cost-efficient procedure if web app is required.

Mobile app from web (WebView)

Web + PWA + Android + iOS

Do you have a majority of customers coming to your website from mobile devices? We’ll meet their needs by implementing your website in a mobile application, which will also handle the features a website can’t.

Are you looking for a mobile app development partner?

Would you like to streamline and simplify everyday work processes but don’t know how powerful a smartly designed software can be? Or are you going to launch a mobile app that should gain worldwide popularity?

Together we can achieve either of these goals. Despite being IT professionals, we speak everyday “human” language so why not meet over a cup of coffee?

Types of mobile apps

  • Mobile apps for virtual/augmented reality (VR/AR) simulate an environment where users can play games, learn new stuff, practice various skills etc. A VR mobile app needs to be connected to a special headset (glasses), such as via Bluetooth. AR apps require nothing more than just the mobile device itself.
  • Kiosk apps are designed for use in closed environments. Users cannot do any interactions outside the software. As an example, we can mention cash register systems running on tablets (e.g. Simple Store).
  • Apps for tablets share all the characteristics of mobile apps (they are designed for portable devices, offer intuitive control, collaborate with features such as GPS etc.). The only difference is that they are optimised for tablet layout.
  • Mobile games hardly need introducing. This is the biggest and most popular group of mobile apps that brings their developers the biggest profit. They include both the most basic of games, such as tic-tac-toe or pairs, and sophisticated 3D shooting games with top-class graphics. You can read more about the development of this type of mobile apps in our case study.
  • Standard mobile apps include all other types of apps that cannot be easily subsumed under any of the above categories. These can be apps for mobile banking, looking up transport connections, weather forecast, car navigation etc.
  • Communication apps enable chatting, messaging or file sharing. The best-known examples are Messenger, Whatsapp, Skype, Telegram, Signal or Viber.
  • Content apps provide users with access to certain content. As a few examples, we can mention search engines, videolibraries, digital galleries, learning apps (languages) etc. For more information about content apps see our case study.
  • Sales presentation mobile apps promote a certain brand, company, event etc. They can also be used as a product catalogue for sales representatives.
  • Apps with payments allow users to make in-app purchases, subscribe to services and much more. A good example are gaming apps where users can buy characters, better gear, upgrade skills etc. However, in-app purchases also enable users to unlock premium content, pay for digital products or get access to new features.
  • Apps with monetization are designed to generate profit. There are multiple ways of achieving this. For instance, it is possible to charge for downloads, place ads (and offer an ad-free paid version at the same time) or monetize access to premium features.

Classification of mobile apps according to scope

  • Clickable prototype consisting of app designs comes into play when developers want to visualise the app’s user interface. Unlike static wireframes or mock-ups, a clickable prototype can display various app states (such as when the user opens a dropdown menu or expands hidden additional information). It’s up to the client which features are to be retained and which are to be removed. The developers get feedback and a better idea of the target product.
  • MVP or minimum viable product is an early version of the system with a limited number of features for first users. The goal of an MVP is to get feedback for the purposes of further development. This method allows for efficient testing of a mobile app concept without wasting time by adding features that might not actually be used in the end.
  • Full-fledged mobile app with a pre-specified scope is – right from the outset – clearly defined in terms of features, audience and scope. The client has a clear idea of what the app should do and who is most likely to download it, which makes things easier for us.
  • Full-fledged mobile app with a web version and optional administration differs from the previous point in that the client further demands a web version and administration for their app.
  • Management of an existing mobile app is also included in our offer – if you already have a finished mobile app, we can develop further features and help with its management.

Platforms and operation systems we support

We cover a wide range of platforms and operation systems. Your app can be fitted for various devices and platforms. It doesn’t really matter if you aim at Android, Apple, or HarmonyOS by Huawei.

DevicePlatformProgramming language (native development)Programming language (multiplatform development)
HarmonyOS (Huawei)Kotlin
WatchesWear OSKotlinReact Native

Why choose us as your mobile app development partner

  • We have no problem developing smaller mobile apps (Korkuma) as well as mobile games (Exitovky) or large apps including a web version, such as the Simple Store system.
  • We have rich experience with cross-platform development (React Native). Do you need to develop an app for all three mobile platforms? Save money with us! We can develop mobile apps for other platforms too so if you want to expand further, we are the right choice!
  • We have been involved in a couple of international projects. You can rely on us even if you aim really high.
  • You don’t have to wait months before we are available. In most cases, we can start working on your project within one month.
  • We use real devices for testing, and you can specify which of them are to be supported.
    We always conduct extensive analysis before we start working to avoid any problems during the development.
  • We offer full service – from analysis, UX, design and development to deployment and app management. We can help with marketing as well.

Mobile apps we have developed


Multiplatform mobile application

The mobile app Exitovky encourages users to play outdoor exit games. Its functions include, amongst others, a multiplayer solution for various devices or testing of GPS location with an accuracy of meters.


Hybrid solution for mobile and web application

Get a free drink with Freely every day! The app is equipped with both a web-based and a mobile component. The web app tells you all about the bars, while the mobile app guarantees a smooth performance on both Android and iOS devices. To make things even more interesting the app has a nightlife design.

Youth Time

Cross-platform mobile app

The mobile app Youth Time, developed for the company of the same name, allows users to discuss articles, share their ideas, opinions and knowledge. 


Multiplatform mobile application

Korkuma for Streamers is one of the tools they can use to sell their products or services. The application contains both live stream and chat, which is used to connect with your fans.


Multiplatform mobile application

Máme Chuť motivates its users to eat out by offering attractive awards for collecting receipts from selected restaurants all over the Czech Republic and Slovakia. The app is available for Android and iOS.


Cross-platform mobile app

Using the mobile app Dobročinnka, people can easily donate money to selected charitable projects. The donated amount is automatically redistributed.


Hybrid mobile and web app

The app JsmeSousedé is a platform to offer and demand all kinds of services – from assistance with moving and lending of tools to household clean-ups. 

Simple Store

Hybrid solution for mobile and web application

Reliable and simple sales system supporting ERS (Electronic Register of Sales). Simple Store is a system designed for management of the entire store including stacks. It’s available on all mobile devices including the web app. 

Do you want to be next?

Leave us a message or give us a call.

We will advise you about which technology we can use and together we will start the application.

Why you should read stats regarding usage share of mobile platforms

Let’s now have a look at the market shares of the individual versions of both systems. In September 2021, the then newest version of Android 11 outperformed the previous version 10. Within the period from its market introduction in March 2021 to February 2022, Android 11 reached a market share of 37 %, whereas Android 10 dropped from 42 % do 24 % in the same period. The third most widespread version of this operating system is Android 9 Pie, whose market share dropped in the aforementioned period from 20 % to 12 %. Older versions with negligible market shares can already be ignored.

What do these figures tells you

What do all these stats tell you as our potential client? It’s simple: We believe that support for Android makes sense for the version 8 and higher, but we can also offer support for older versions for an extra charge. As for iOS, we consider its support worthwhile from the version 14 and higher, but upon request we may provide support for earlier versions for an extra fee.

Please keep in mind that the usage share of the given mobile operating system is not the only decisive criterion. While Android certainly dominates the global market, apps for iOS generate higher profit according to stats (in 2021, 63 % of earnings coming from apps were generated by iOS apps). There are other criteria besides the operating system, such as resolution and device type (mobile vs. tablet). Typically, we don’t optimise apps for tablets, but this service is available upon request.

If you want to make sure not to miss any important information on publishing apps on Google Play and App Store, please read our blog article that deals with this topic in detail. You will learn about the differences in demands for apps, fees that are to be reckoned with or how to configure metadata.

Before we get on with your mobile app, we need to identify the platforms we are going to target. To give you a better idea, we have compared two most widely used mobile operating systems for you.

The most frequently used mobile operating system worldwide is Android with a global market share of 70 %, followed by iOS with a market share of 28 %. Figures for the Czech Republic are roughly the same (Android being even more popular with the market share of 74 %, followed by iOS at 26 %). Speaking of Europe as a whole, the ratio is slightly more favourable for iOS than in previous cases (nearly 35% market share).

The comparison with the competing system iOS shows that the latter platform has far more frequent updates. For example, the market share of iOS 14.6 and iOS 14.7 dropped within four months by more than 50 %. A similar tendency can be seen with the 15.1 version, which was the most widely used version on the market in the early 2022, but now is some 20 % below the currently most used version iOS 15.2 (32 %).

We intentionally left out the HarmonyOS system, whose current market share is still too small. However, experts (including us) predict that this could change this year. Therefore, we offer support even for this rapidly emerging mobile operating system that could possibly spread out in near future.

Mobile apps FAQs

How long does it take to develop a mobile app?

That depends on your requirements. The smallest and simplest apps can be finished as quickly as in one month. For middle-sized apps, a period of roughly 3 months could be expected, and large and sophisticated mobile apps with UI/UX optimised for tablets can take even more than 6 months to develop.

How expensive is mobile app development?

All processes included in the app development can be found in our blog article on mobile app development.

How do you document the code?

That needs to be agreed with the client. Every project is different. We always prepare the API documentation together with the basic backend and frontend documentation. It is possible to provide full documentation, including the app manual, plus the document summarising the used technologies. This service comes with an extra fee, though.

How will the app be handed over to me?

Normally, we hand the app over by uploading it to the production environment upon the client’s consent. After that, the app goes to the testing mode so we can fix the detected faults already in the production environment.

Who will take care of my project?

Our project manager – one of the three colleagues included in the contact details section or another project manager.

Can my app support multiple languages?

Yes, the multilingual feature is important primarily for global projects. Availability in several languages should be considered even if you’re not going to target foreign audience right from the beginning but would like to do so later.

What does the mobile app development include?

All processes that are part of the development project can be found on our cooperation process page. Simply put, the cooperation consists of the following stages: Analysis and specifications, development, functional testing, acceptance testing, production environment deployment, software management and further development.

How do you assure the code quality, safety and other important features?

In case of any change in the code, we automatically run tests to analyse the licenses of all packages for compatibility. We also run programmes to analyse the code quality – the code has to meet our defined quality standards. Further, we run the package vulnerability database, which allows us to prevent the exploitation of an already detected error. Following all that, the app undergoes additional tests by our testers.

Can I have a look at the current version of my app during the development?

Yes, new versions are submitted to Testflight for iOS and to internal testing on Google Play for Android. For administration and other app parts, we have by default several environments deployed. For each feature that has not yet made it into the main code we have one app environment available internally. Additionally, we also have internal environment for the main code version plus stage environment deployed, which is the version before moving to production. The stage version is already available for testing on the client’s side.

Can I do with my app what I want? Can I even sell it to someone else?

Yes, that is possible. Our standard general contract will grant you unlimited license, including the possibility of ownership rights assignment. This means you can do with your mobile app whatever you wish – including selling it to someone else.

Can I change my requirements throughout the development?

Yes, absolutely. We like to remain flexible. Since we develop the individual parts one after another, it is often possible to make changes even without increasing the price – provided the part in question hasn’t been developed yet.

What kind of support do you offer after the development?

If the development goes on even after the given phase has been finished, we fix any faults afterwards. Besides that, it is also possible to agree on a service contract which will specify a response time for us in case of error reporting.

What is required to deploy my app on store platforms?

You have to fill in the details in the respective stores – refer to our blog article on how to publish your app on Google Play and App Store

I need both a mobile and a web app. Is there a way of saving money on development?

Yes. With monolithic structure, some components can be used for both types. It is also possible to use the hybrid development method using the React Native for Web technology – see our article on web apps

Do you offer guarantee for your software?

Normally, we offer a two-month trial period following the software delivery. The client is free to test the app already during the development stage. If you require guarantee, it is always possible to agree on it for an extra fee.

Do you support tablets as well?

Yes, support for tablets is possible. Whether it makes sense depends on the specific type of application. The app can be launched on tablets in any case, but it will be using a mobile graphic layout. Should you demand the support for tablets, it will be necessary to create a graphic layout for tablets as well.

Do you support the dark mode?

Typically, we don’t implement the dark mode, but we have already done a couple of apps supporting this mode.

Can you provide app designs?

Yes, we even have a dedicated employee to prepare the designs according to the specific project. By default, designs are provided by us but it is also possible for you to provide your own designs that we’ll fine-tune together as required.

Which technologies do you use for development?

Typically, we develop in Kotlin, Swift and React Native – see our stack. However, it is also possible to agree on other technologies – especially if we are to take over a project.

What work needs to be done after the app is finished?

That is up to us to arrange. In case a lot of work remains to be done, it may be convenient to agree on a schedule.

How do I pay for the development of my mobile app?

Normally, we ask for an advance payment either for a part of the whole app, or just for a milestone. After the milestone is completed or the system is deployed to production, we’ll ask for another payment and after the test mode we’ll charge the remaining amount.

Why is it not possible to support all Android mobile phones?

There are several thousand mobile phone models using the Android system in the world. We do our best to support most of the popular marks and models, but it can always happen that someone buys an unknown phone from China and our app may not run on it properly.

What is the difference between development in React Native and native development of mobile apps?

Development in React Native is faster than native development. Let’s assume we are developing for two platforms as opposed to developing in React Native: Development in React Native will take roughly 60 % of the time needed for native development. Of course, this applies only under the condition of identical allocation for both types of development. Development in React Native can get “jammed” in case one of the libraries doesn’t exist or doesn’t work on certain platform etc. That’s why it’s always good to have a feature checklist ready in order to review the features and check whether they are supported.

How long does it take to deploy my app on store platforms?

That depends on the type of your app and the platform. As for Android, we managed to deploy most apps within one week. With iOS, problems may arise in case there are issues with payments outside of AppStore, minor apps or apps from the medical industry. This means that deployment of your app to AppStore can take anywhere from one to three weeks, sometimes even longer.

Do you support both the portrait and landscape mode?

By default, we support the portrait mode. However, the landscape mode can be added, too.

Are apps made in React Native slower than those created using native development?

As far as we know, there is no indication that apps made in React Native are slow. In most cases, the app speed is stable. Needless to say, there are certain situations where native development pays off. Should we find that this is the case, we’ll let you know that React Native might not be suitable for your project.

Is it possible to take over an already started/finished project and develop it further?

Yes, provided we use the same or similar technology stack. That being said, the chances are that we’ll have to make some changes after receiving the project in order to carry on with the development. Sometimes it may be more efficient to simply start from scratch.

What will the administration of my mobile app look like?

To create administration for smaller mobile apps, we use Django Admin (as we did, for example, when developing the testing method ColorDelp). For more robust apps, we create tailor-made administration in the form of a web app

Our articles on mobile apps

Do you have an idea for a new mobile app but don’t know how to build it…
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Let’s now have a look at how you can publish your app on Google Play or App…
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Mobile apps are becoming increasingly common and very often they are the ultimate selling channel, ingenious automation…
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Do you have a breakthrough idea that could change the world? Or at least change the world…
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