Thls

Modern PWA (Progressive Web Apps)

Build PWA – innovative web apps acting like native. Install on PC/mobile, offline, push notifications, speed. Future app for every user.

Build your PWA application

Why create a PWA application with us?

Our expertise in Progressive Web Apps allows us to create fast, reliable, and engaging next-generation applications.

PWA Technology Mastery

We proficiently implement key PWA elements: Service Workers for offline handling and cache, Web App Manifest for installation, and Push API for notifications.

'App-Like' User Experience

We design interfaces (UI/UX) that ensure fluidity and intuitive operation comparable to the best native applications.

Offline Reliability and Engagement

We implement effective offline strategies and configure push notifications to increase user retention and engagement.

Our PWA application creation process

We focus on delivering a web application that is not only functional but also fast, installable, and reliable.

1

Workshops and PWA Strategy

We discuss business goals, define key PWA features (offline, push, installation), and choose the optimal architecture.

2

UX/UI Design for PWA

We create an interface design optimized for performance, responsiveness across devices, and an intuitive, 'app-like' feel.

3

Web Application Development

We build the core application using modern JavaScript frameworks (React, Vue, Angular) and best web development practices.

4

Service Worker Implementation

We program the Service Worker, which intelligently manages the cache, enables offline operation, and handles background tasks.

5

Web App Manifest Configuration

We create the manifest.json file, defining the application name, icons, theme colors, splash screen, and how it displays after installation.

6

Push Notification Integration (optional)

We configure subscription and push notification mechanisms to enable communication with users.

7

PWA Testing and Audit (Lighthouse)

We rigorously test all PWA features (installation, offline, responsiveness) and conduct audits (e.g., Google Lighthouse) to ensure the highest quality.

PWA: The Standard for Modern Web Applications

Progressive Web Apps redefine web capabilities. We create PWAs that impress with speed, work reliably even without an internet connection, engage users with notifications, and are always within reach thanks to installability.

pc-app-pwa

*Our PWAs are designed according to Google guidelines, ensuring excellent results in Lighthouse audits for Performance, Accessibility, Best Practices, and SEO, and most importantly, guaranteeing user satisfaction.*

Frequently Asked Questions

Answers to the most common questions about Progressive Web Apps (PWA) technology.

What exactly is the difference between a PWA and a regular website?

A PWA is a website 'on steroids'. Thanks to additional technologies (Service Worker, Manifest), it gains app-like features: installability, offline operation, push notifications, access to some device features.

What are the benefits of PWA compared to native apps (iOS/Android)?

PWA offers: one codebase for multiple platforms (lower cost), no need to download from a store (accessible via browser), always the latest version, indexable by search engines. However, native apps still have deeper access to hardware and system features.

Does PWA work well on iPhone / iOS?

PWA support on iOS is available but has some limitations compared to Android or desktop. You can add a PWA to the home screen, the Service Worker works (with limits), but e.g., push notifications for PWAs are not currently (as of April 2025) fully supported by Apple in Safari.

Can any website be converted into a PWA?

Technically, a Manifest and Service Worker can be added to any site. However, for a PWA to be truly useful (especially offline), the site should have a suitable architecture (e.g., SPA - Single Page Application) and be served over HTTPS. We are happy to assess the possibilities for your site.

How much does it cost to create a PWA?

The cost depends on the scope of work. A simple conversion of an existing, well-prepared site to PWA can be relatively inexpensive. Building a complex PWA from scratch, with advanced offline logic, is a larger investment. We offer individual quotes.

PWA Application Creation Pricing

We handle both projects converting existing sites to PWA and building new, advanced PWA applications from scratch. Contact us for an individual offer.

Hourly Rate

Flexible billing for the actual time spent working on your site.

16£ / hour gross

  • Web App Manifest Configuration
  • Ensuring operation via HTTPS
  • Installation tests on supported platforms
  • PWA-oriented UX/UI design
  • Application development (e.g., React, Vue, Angular)
  • Advanced Service Worker (cache strategies, offline handling for API)
  • Full Manifest configuration
  • Push notification integration (optional)
  • Performance optimization (Lighthouse)
  • Testing on various devices
  • Offline-First application architecture
  • Implementation of local database (e.g., IndexedDB)
  • Background data synchronization mechanisms
  • Handling complex operations in offline mode
  • Full utilization of Service Worker capabilities
  • Advanced push notifications
  • Highest performance and reliability

*The final cost of creating or converting to PWA depends on the state of the existing site (for conversion), the complexity of required features (especially offline logic), backend integration, and the scope of testing. Please contact us for a free, detailed quote.

Contact

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Contact Information

You can contact us anytime!

Address

Polska Pszów Pszowska 557

Contact Number

+48 576 399 606

Email Address

Contact@thls.pl

Working Hours

Monday - Friday7:00 AM - 5:00 PM
Saturday8:00 AM - 2:00 PM
SundayClosed