WislaCode

Progressive Web App Development

Our expert team at WislaCode builds progressive web applications (PWAs). These apps blend the best parts of native experiences with the web’s flexibility.

PWA Development Services for Modern Businesses

PWAs are a powerful tool for boosting user engagement and attracting new customers. PWAs combine the best of websites and mobile apps. They create a unique experience that attracts visitors and encourages them to come back.

Every PWA we create offers strong features and a great user experience right in the browser.

Web App Engineering: End-to-end creation of progressive web applications, from initial concept to launch, using the latest web technologies.
Modern Interface & Experience Design: Custom interface and experience design that makes your PWA easy to use, accessible, and visually appealing.
System Integration Services: Seamless integration of your PWA with current business systems, APIs, and third-party services.
Quality Assurance & Testing: We provide thorough manual and automated testing. This ensures smooth performance, easy usability, and strong security on all platforms.
Seamless Web App Migration: Safe and efficient migration from legacy web or mobile apps to modern, scalable PWAs.
Digital Product Advisory: Strategic advice and technical guidance to help you maximise the value of progressive web technologies for your business.
PWA development services for modern businesses

The Key Benefits of Progressive Web Apps

Progressive web apps offer an app-like look and feel but keep the benefits of a website. Users can effortlessly navigate PWAs in their browsers just as they would with native apps, enjoying a familiar and user-friendly interface.
Developing PWAs is more cost-effective than creating native mobile applications. With a single PWA, you achieve compatibility across all devices, significantly reducing development, deployment, and ongoing maintenance costs.
PWAs provide a quick, seamless, and responsive experience. They often load faster than traditional apps. This enhanced performance increases user satisfaction, leading to higher retention rates and greater brand loyalty.
Progressive web apps continue to function offline or with limited connectivity. Users can access the app at any time without needing to download it, reducing abandonment rates even when network connections are weak.
At WislaCode, our PWA developers create solutions that run seamlessly on any platform. Our PWAs use one codebase. This means your app works on different devices easily.
PWAs are served over secure networks, providing the same high level of security as native mobile applications. This makes them suitable for handling sensitive information and secure payments.
PWAs support push notifications to keep users engaged and informed without the need for a native app. These notifications grab user attention. They help users stay updated with the latest content and news.

Viacheslav Kostin
CEO WislaCode Solution

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How Are Progressive Web Applications Developed Step by Step?

We analyse each client’s business to create a strategic plan that aligns the PWA with their objectives and customer needs. This approach ensures that every PWA we deliver is effective, scalable, and supports business growth.
Planning
Analysis
We are committed to quality. So, every application goes through strict testing. This checks functionality, usability, performance, and security.
Testing
UX Research
Our PWAs are built on a microservices architecture, creating a scalable IT landscape ready for future expansion.
Design
Development
WislaCode guarantees a successful PWA launch, designed for scalability and long-term operation. We ensure your app is prepared to evolve with your business and meet users’ needs over time.
Launch
Support

Real-World PWA Success Story

A leading fitness brand partnered with WislaCode to launch a progressive web app for gym members.

The result? A mobile-first platform that lets you access workouts offline. You can book classes in real time and get push notifications for personalised offers.

In just three months, user engagement rose by 42%. Mobile conversions even doubled. This shows how effective a good PWA can be.

Why WislaCode?
Our team gets recognition for providing innovative web solutions to clients in fintech, retail, and SaaS sectors.
Proven Expertise
We build long-term partnerships, focusing on your business outcomes and user satisfaction.
Client-Centric Approach
We keep you informed at every stage, with regular updates and direct access to your project team.
Transparent Communication
Our developers and designers actively share insights and thought leadership, staying ahead of industry trends.
Continuous Learning
Some Customer Reviews
WislaCode specialists and PWA developers are dedicated to each project. They work hard to deliver results quickly.
Aleksei Malenkin, $lana (Monetech)
5

WislaCode specialists quickly synchronised and worked with the second team involved in developing our solution.
As a result, having started development from scratch, we came to the expected result quickly. The first users went to the application after 5 months.
Read the full review

Frequently Asked Questions About PWA Development

A Progressive Web App, or PWA, is a modern web application that’s designed to deliver a seamless, app-like experience directly in your browser. Unlike traditional websites, PWAs can be installed on your device, allowing you to launch them from your home screen just like a native app. They’re built using standard web technologies such as HTML, CSS, and JavaScript, but they also incorporate advanced features like offline access, push notifications, and background updates. This means you get the best of both worlds: the broad reach and discoverability of the web, combined with the speed, reliability, and engagement of a mobile app. For businesses, PWAs offer a cost-effective way to provide users with a high-quality digital experience across all devices, without the need to develop separate apps for iOS and Android.

While both PWAs and native apps aim to provide a smooth, engaging user experience, there are some key differences. Native apps are built specifically for a particular operating system (like iOS or Android) and must be downloaded from an app store. PWAs, on the other hand, are accessed via a web browser but can also be installed on your device for quick access. Updates to a PWA happen automatically in the background, so users always have the latest version without needing to download anything new. PWAs are also more accessible, as they work on any device with a modern browser, and they’re easier to share – just send a link. For businesses, this means lower development and maintenance costs, faster time to market, and the ability to reach a wider audience without the hurdles of app store approval.

PWAs are an excellent fit for a wide range of businesses, especially those looking to improve user engagement, boost mobile conversions, or provide reliable access regardless of network conditions. If your customers expect fast load times, offline functionality, and a consistent experience across devices, a PWA is likely to deliver real value. They’re particularly effective for e-commerce, media, travel, and service-based platforms, but any organisation aiming to modernise its digital offering can benefit. PWAs are also highly discoverable via search engines, which can help drive organic traffic and improve your online visibility. If you’re unsure whether a PWA is right for your business, our team is happy to provide a tailored consultation based on your goals and audience.

Security is a top priority for PWAs. All progressive web apps must be served over HTTPS, which ensures that data transmitted between the user and the server is encrypted and protected from interception. This is the same level of security used by online banking and e-commerce platforms. In addition, PWAs use service workers to manage background processes and caching, which are isolated from the main application and can’t access sensitive data directly. Regular security audits, up-to-date libraries, and best practices in authentication and data handling further reduce risks. For businesses handling payments or personal information, PWAs can be made fully compliant with industry standards and regulations, giving both you and your users peace of mind.

Absolutely. One of the strengths of PWAs is their flexibility and ability to integrate with a wide range of existing business systems, such as CRMs, ERPs, payment gateways, and third-party APIs. Using modern web standards like REST and GraphQL, a PWA can exchange data in real time, automate workflows, and provide a unified experience for your users. Whether you’re looking to connect your app to inventory management, customer support, or marketing tools, our development team can ensure seamless integration. This approach not only streamlines operations but also helps future-proof your digital infrastructure as your business evolves.

The development timeline for a PWA depends on the complexity of your requirements, the number of integrations, and the level of custom design involved. For a straightforward project, you can expect a timeline of around 8 to 16 weeks from initial planning to launch. More complex solutions, such as those requiring bespoke features or deep system integrations, may take longer. Our process is transparent and collaborative: we start with a discovery phase to understand your needs, then move through design, development, testing, and deployment, keeping you informed at every step. This ensures your PWA is delivered on time, on budget, and ready to deliver value from day one.

Yes, one of the defining features of a PWA is its ability to function even when there’s no internet connection. This is achieved through service workers, which cache essential resources and data on the user’s device. As a result, users can continue to browse content, fill in forms, or interact with key features even if their connection drops. Once the device is back online, any changes or data are automatically synchronised with the server. This offline capability is especially valuable for businesses whose users are often on the move or in areas with patchy connectivity, ensuring a reliable and frustration-free experience at all times.

Getting started is simple. Just reach out to us via our website or connect with us on LinkedIn for a no-obligation consultation. We’ll discuss your business objectives, review your current digital setup, and advise on the best approach for your PWA project. Our team will then provide a tailored proposal, outlining the recommended features, timeline, and investment. From there, we’ll guide you through every stage of the process, from initial planning and design to development, launch, and ongoing support. Our goal is to make the transition to a progressive web app as smooth and beneficial as possible for your business.

Viacheslav Kostin

Viacheslav Kostin, CEO

20+ years of experience in managerial positions in IT and banking.

Viacheslav Kostin, CEO
Previous roles: CEO in IT, Director of Strategy and Marketing in Banking, Curator of Holding Banks, Head of Products and Project Office.
Education: MBA for Executives at IMD (Switzerland), Leading Digital Business Transformation (IMD). Provides consulting in strategy and digital transformation.

Pahomov

Vasil Pahomov, CTO

20+ years of experience as a developer, analyst, and solutions architect.

Vasil Pahomov, CTO
Designs resilient, high-load systems with multiple integrations for banks and financial institutions. Expertise in distributed storage and microservices architecture.
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