# Progressive Web App Development > Installable, offline-first PWAs that combine web reach with native app experience. Canonical: https://app369.com/service/pwa-development/ A website for your business that installs like an app. App369 builds installable, offline-first Progressive Web Apps that combine the reach of the [web](https://app369.com/service/web-apps/) with the experience of a [native app](https://app369.com/service/mobile-apps/), no app store required. [**Get Started **→](https://app369.com/contact/) ## **Prefer a fixed price?** Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed. - [**Web App MVP Sprint**from $6,000A scoped web app MVP in Vue/Nuxt or React, with a fixed quote after a $450 written scoping.](https://app369.com/fixed-price/web-app-mvp/) - [**App Fix Ticket**from $450One reproducible bug in an existing mobile or web app, diagnosed and fixed.](https://app369.com/fixed-price/flutter-firebase-bug-fix/) - [**AI Feature or Agent Build**$2,500One LLM feature or agent wired into your app or tools, with an eval set that shows how well it works.](https://app369.com/fixed-price/ai-feature-development/) What Simon builds ## **PWA Development Services** 01 ### **Offline-First PWA Development** PWAs that work without an internet connection using service workers and IndexedDB for local data storage. 02 ### **Service Worker Implementation** Custom service worker strategies using Workbox for intelligent caching, background sync for deferred actions, and periodic background fetch. Simon implements cache-first, network-first, and stale-while-revalidate patterns based on your content type. 03 ### **Push Notifications** Web push notifications for re-engagement that work on Android, iOS (since iOS 16.4), and desktop browsers. 04 ### **App Shell Architecture** Instant-loading app shell pattern that caches the UI framework and loads dynamic content on demand. This architecture delivers sub-second initial load times and smooth navigation that feels indistinguishable from a native app. 05 ### **Web App Manifest Configuration** Complete manifest configuration for home screen installation, splash screens, theme colors, and display modes. Simon configures standalone display mode for full-screen app experience and shortcuts for quick actions directly from the home screen. 06 ### **Advanced Cache Strategies** Sophisticated caching with Workbox including runtime caching, precaching of critical assets, cache versioning with automatic cleanup, and range request handling for media. This caching minimizes bandwidth usage while ensuring content freshness. How it works ## **The process** 2. 01 ### **Discovery & PWA Strategy** Simon analyzes your business goals, target audience, and offline requirements to determine the optimal PWA architecture, caching strategy, and feature set for maximum engagement. 3. 02 ### **UI/UX Design** Simon designs responsive, app-like interfaces that work consistently across desktop, tablet, and mobile with touch-first interactions, smooth transitions, and offline state handling. 4. 03 ### **PWA Development** Simon builds your PWA using Vue.js and Nuxt with Workbox for service worker management, implementing app shell architecture, background sync, and push notification integration. 5. 04 ### **Performance & Offline Testing** Testing with Lighthouse for PWA compliance scoring, Chrome DevTools for service worker debugging, and real-device testing across browsers to ensure consistent offline behavior and sub-second load times. 6. 05 ### **Deployment & Distribution** Simon deploys your PWA to a CDN with HTTPS, configures the web app manifest for installability, and optionally publishes to Google Play Store via Trusted Web Activity (TWA) for additional distribution. 7. 06 ### **Monitoring & Optimization** Ongoing performance monitoring with Core Web Vitals tracking, service worker updates, cache invalidation management, and iterative improvements based on user engagement analytics. Technologies - Vue.js - Nuxt - Workbox - Service Workers - IndexedDB - Web Push API Questions ## **Frequently asked questions** ### **What is a Progressive Web App (PWA)?** PWAs are installable on the home screen without an app store, work offline using service workers, support push notifications, and load instantly with app shell architecture. ### **PWA vs native app: which should I choose?** Choose a PWA if you need broad reach across all devices, SEO visibility, and lower development costs. Choose a native app if you need advanced hardware access (Bluetooth, NFC, ARKit), App Store/Play Store distribution, or maximum performance for graphics-intensive features. App369 can also build a PWA alongside a native Flutter app for maximum coverage. ### **How much does PWA development cost?** Cost depends on scope, platforms and integrations. App369's rates are published on the fee structure page, and the free app cost calculator gives a range for a progressive web app with every assumption listed. Simon sends a fixed quote after reviewing your brief. ### **Do PWAs work offline?** Yes. Service workers intercept network requests and serve cached responses when the network is unavailable. Strategies include cache-first for static assets, network-first for dynamic content, and stale-while-revalidate for balanced freshness. IndexedDB provides offline data storage for complex datasets. App369 implements Workbox for robust caching strategies. ### **Which browsers support PWAs?** App369 implements progressive enhancement to ensure the best possible experience on each browser. ### **Can PWAs access device features like camera and GPS?** Yes. Push notifications are supported on both Android and iOS (since iOS 16.4). Bluetooth and NFC access is available in Chromium-based browsers. Start here ## **Web Reach, App Experience** PWAs eliminate app store friction and work on every device with a browser. Already have a Lovable or Bolt web app that needs to be in the App Store? See [how to wrap it and what Apple checks](https://app369.com/fix/lovable-bolt-web-app-to-app-store/). Learn more about [why PWAs outperform traditional mobile sites](https://app369.com/blog/why-pwas-are-better-app369/), or get a detailed estimate by email, usually within one business day, or book a consultation ($100 per 15 minutes, paid upfront). [**Get in touch **→](https://app369.com/contact/) [**View pricing**](https://app369.com/fee-structure/) Fiverr reviews / 95 on app work ## **What buyers said about this kind of work** [**Read 126 of the 127 reviews **](https://app369.com/reviews/) - - - ### **Read the whole story** - [Sixteen five-star reviews from one buyer: mobile apps, app design and a Shopify store](https://app369.com/case-studies/fiverr/mobile-apps-and-a-shopify-store-for-one-buyer/) (Mark, United States) - [A large custom app build, delivered on the back end and the front end](https://app369.com/case-studies/fiverr/large-custom-app-build/) (A buyer in the United States)