Custom mobile application development services

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We provide end-to-end mobile app development services to clients from Tokyo to Los Angeles and from Berlin to Melbourne. We specialise in user-centered solutions across native, cross-platform, and progressive web applications that comply with our clients’ business requirements.

Rubyroid Labs is one of the top mobile app development companies in Europe.
We have been building mobile software for over ten years. Our clients are daring startups, businesses undergoing transformation, and corporations leveraging the power of digital.
Rubyroid Labs ranks in the top 3 global Ruby on Rails developers on Rated 5.0. 40+ positive reviews
Toyota, Airswift and Volvo are some of the companies that use apps built by Rubyroid Labs.
We have developed apps for 30+ mobile startups, including Y Combinator and Seedcamp graduates.

The apps we build

We employ a variety of frameworks to build different types of apps.


Cross-platform app development

We create cross-platform mobile apps that operate efficiently on both iOS and Android mobile platforms.
Built with a single code, these app solutions are more cost-effective and are developed 1.5 times faster than native apps.
For cross-platform development, we use the
React Native

cross-platform development service


Native app development

We specialize in building native mobile apps from scratch or enhancing your existing ones to make your business more flexible, functional, and scalable.
Native app development includes:
  • iOS app development with Objective-C and Swift
  • Android app development with JavaScript and Kotlin

contact us


We’ve had the pleasure of working with a dedicated team from Rubyroid Labs for over two years.

Kyle McLean, CTO of Layer Cake

Featured mobile app development stories


We are proud of our product and the Rubyroid Labs team helped us make this happen.

Andrew Boriskin, Founder of RocketWash
Our quality checklist
When creating a mobile app or a web application of high quality, we focus on the following criteria:

Market fit

We consider your target users and competitors when developing your app’s user interface (UI). This approach enables us to create an application design that not only resonates with users but also stands out in the market.



We prioritize optimal app performance, ensuring fast load times, efficient data handling, and smooth operation across different devices and operating systems. Our focus is on creating apps that are not only functional but also consistently reliable and responsive.



We design for ease of use, ensuring that the app's interface is intuitive, engaging, and user-friendly. This involves thoughtful layout, straightforward navigation, and a clear, accessible design that enhances the overall user experience.



Protecting a mobile app's code from hackers and other security threats is crucial. Our app development solutions incorporate strong security measures, including encryption, SSL  (Secure Sockets Layer) for safe data transmission, and JWT (JSON Web Tokens) for secure authentication.

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Why choose Rubyroid Labs as a mobile app development services company
Here are some compelling reasons to consider Rubyroid Labs for your mobile app development needs


year of establishement

Warsaw, Poland

the city we are headquartered in


mobile apps built


mobile developers

4-8 years

an average experience of our engineers

statistic on grid
Reasons to trust us with your app development projects

Proven track record

Since 2013, we have successfully completed over 30 mobile and 200 web application projects across multiple industries, including:

real estate

Total transparency

We maintain full transparency throughout the development process, employing Agile methodologies.

Client-centric approach

A can-do attitude and willingness to listen to your needs enable our development team to dive into your business domain and offer customized solutions to meet your business goals.

Adaptive development

Our developers are quick to adapt to changing work environments, ensuring smooth coordination and overlap of working hours.

Focus on time-to-market

Understanding the critical nature of time-to-market for our clients, we break down the project scope into manageable iterations, employing effective strategies to accelerate the product’s market readiness.

reasons to trust

Mobile app development process

By outsourcing your project idea to us, you gain access to a fully transparent, end-to-end mobile application development process. You’ll be involved in various development stages, which include:

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Mobile app consultation
Engage in a thorough discussion of your project concept with our developers and business analysts. During this consultation, our experts will assist you in choosing key aspects such as:
  • Technology for the application
  • App’s architecture
  • Team structure
  • Design
Analysis & Planning
Once your functional requirements and use cases are defined with our team, we build a product roadmap. This visual plan outlines the actions needed to achieve the project's goals.
Mobile app UI/UX design
Our UI/UX engineers provide you with a comprehensive visual design of your application, which includes wireframes, style guides, architecture, and mockups.
MVP development
Using the gathered information, we develop a minimum viable product (MVP). This allows you to test the concept with the target audience and make any necessary final adjustments.
Mobile app development
We create an intuitive and user-friendly mobile app, ensuring optimal functionality. The entire development process is trackable, clear, and tailored to your specific requirements.
App modernization
We create an intuitive and user-friendly mobile app, ensuring optimal functionality. The entire development process is trackable, clear, and tailored to your specific requirements.
App testing
Our QA engineers test the product at every development stage to ensure its stability and security. The testing process covers user experience, performance, functionality, security, and compatibility across different devices and platforms.
App deployment and support
We provide ongoing support and maintenance of your product, which includes updates, bugs identification, and enhancements to features and security issues, ensuring a lasting presence on the market.
Three ways to hire our mobile app developers

You can choose how to outsource your job to our mobile app developers, depending on your project’s specifics.

Fixed price
This model is for you if you have:
  • project specifications
  • technical documentation
  • clearly described your expectations in writing.
Expect this:
We complete your project within the agreed budget.
Time & materials
Go with TM if you:
  • are not sure how much work will be needed
  • lack usable project documentation
  • might change your requirements at some point.
Expect this:
We broadly estimate your project, and you pay for our mobile app development services based on actual work hours.
Dedicated team
Choose this model if you:
  • think a full-time team will do best
  • can manage your project yourself
Expect this:
We put together a team of mobile experts that will build your app under your guidance
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Let’s build your app

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What services does Rubyroid Labs provide for mobile app development?

At Rubyroid Labs, our mobile app development services include:

  • Consulting and prototyping
  • UI/UX design services
  • Custom iOS application development
  • Custom Android application development
  • Cross-platform app development
  • Progressive Web App development
  • QA testing services
  • Maintenance and continuing support

How much does it cost to develop a mobile app?

Several factors influence the cost of mobile app development:

  • The type of mobile application: Native, cross-platform, hybrid, and progressive web apps each have different costs and require specific developers’ skills.
  • The quantity and complexity of an app's features, the technologies to be implemented, the number of screens, the need for API connections, user profiles, and security level.
  • The app’s localization and the need for language support.
  • Integration of payment systems, QR codes, or other gateways.
  • Programmer rates, skills, and experience.
  • The type of mobile platform – iOS and Android have different development requirements.

After discussing these factors, we create a detailed description including user journeys, tech stack, project costs, and timeline.

How long does it take to develop a mobile application, and how can I reduce time-to-market?

The time required to develop a mobile application varies depending on factors such as feature complexity, screen sizes, frameworks, and platforms used. Mobile app development is indeed a time-consuming process, and the duration can range from 2 to 6 months for relatively simple apps.

    What is the difference between cross-platform app development and hybrid mobile app development?

    A hybrid app combines features from both native and web applications. It is created using web technologies such as HTML, CSS, and JavaScript, and then encapsulated in a native framework. This enables the app to be installed and used as a native app on a user's device. In comparison to a cross-platform app, a hybrid app has the following benefits:

    • Smooth Performance: The app delivers a seamless user experience with fast and responsive performance.
    • Native-like Behavior: Users interact with the app just like they would with a native app, providing familiarity and ease of use.
    • Platform Specificity: The app considers the unique features and requirements of both iOS and Android platforms, ensuring optimal functionality on each.
    • User-Centric Approach: The app takes into account user behavior and preferences on each platform, enhancing the overall user experience.

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