solution
Progressive Web App Development .
iSkylar builds Progressive Web Apps that deliver a native-like experience on any device and browser, installable, offline-capable, and fast-loading, without the submission process, platform fees, or separate codebase of a native app. We implement the full service worker architecture, web app manifest, and caching strategy that separates a real PWA from a website with a manifest file.
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What We Build
New PWA Builds
Full PWA development from scratch, React, Next.js, Angular, or Vue.js frontend with a complete service worker implementation, web app manifest, push notification system, and offline data sync strategy built in from the start.
PWA Conversion of Existing Web Apps
We upgrade your existing website or web application to a PWA, adding service workers, offline support, installability, and push notifications without disrupting your current codebase.
Offline-First Architecture
We design and implement caching strategies (cache-first, network-first, stale-while-revalidate) and background sync logic that keep your PWA functional when users have no connectivity, critical for field workers and emerging markets.
Push Notification Implementation
Web Push API implementation across browsers and platforms, subscription management, notification scheduling, personalisation, and analytics so you can measure and improve engagement.
PWA Performance Optimisation
We audit your web app against Core Web Vitals and PWA Lighthouse scores, optimising bundle size, lazy loading, image compression, caching, and rendering strategy to hit the performance bar that makes a PWA feel native.
PWA and Backend Integration
Service worker background sync connected to your REST or GraphQL API, IndexedDB for local storage, conflict resolution strategy for offline-first writes, and a seamless online/offline state UX.
AI-POWEREDLearn how we work
Delivered faster with AI tooling
We don't just write code; we orchestrate intelligence. By integrating Copilot-assisted generation and AI-driven automated testing, we reduce time-to-market by up to 40%.
Copilot-Assisted Generation
LLM-backed development to eliminate boilerplate delays.
AI Predictive Testing
Anticipating edge cases before they enter production.
ENGINEERED FOR PERFORMANCE
The iSkylar Tech Stack
React / Next.js
Angular
Vue.js
Workbox
Service Workers API
Web App Manifest
IndexedDB
Web Push API
TypeScript
Tailwind CSS
Node.js
Vite
Lighthouse
WebAssembly
Figma
Our Development Journey
A streamlined, transparent path from vision to launch.
01
Discovery and PWA Audit
1 week
If converting an existing app, we run a Lighthouse audit and service worker audit to baseline current scores. For new builds, we agree on offline scenarios, caching strategy, and notification scope.
02
Architecture and Design
1–3 weeks
Service worker strategy mapped, manifest configured, offline data model designed, push notification flow designed, and UI states for offline/online transitions prototyped and approved.
03
Development
3–10 weeks
Service worker implementation, background sync, push notifications, IndexedDB integration, and full responsive UI, with Lighthouse scores monitored throughout development, not just at the end.
04
QA and Cross-Browser Testing
1–2 weeks
Testing across Chrome, Safari (iOS and macOS), Firefox, and Edge, install flow, offline behaviour, push notification delivery, and background sync verified on real devices.
05
Launch and Performance Validation
2–3 days
Production deployment, Lighthouse audit run on live environment, Core Web Vitals monitored via Search Console, and install prompt analytics verified.
06
Post-Launch Optimisation
Ongoing
Performance monitoring, service worker cache strategy tuning, push notification engagement optimisation, and feature additions as the product grows.
Our Proven Track Record
IMPACTMETRICS
LIGHTHOUSE SCORE
97
Average Lighthouse PWA score achieved on applications built by iSkylar from scratch
PERFORMANCE GAIN
64%
Improvement in Time to Interactive after PWA conversion and service worker implementation for a retail web app
ENGAGEMENT UPLIFT
41%
Increase in return visit rate after implementing web push notifications for a content platform
DATA SAVINGS
72%
Reduction in data transfer costs for an offline-first field service PWA through aggressive caching strategy
INDUSTRY APPLICATIONS
Across Every Industry
See how Progressive Web App Development solves real problems across sectors.
01
Retail
PWA conversion of an e-commerce website for a fashion brand
64% improvement in mobile load time and 22% increase in mobile conversion rate
02
Field Services
Offline-first inspection PWA for a utilities maintenance team
Eliminated connectivity-related job failures for 300 field workers
03
Media
Content and news PWA with push notifications
41% increase in daily active users within 60 days of push notification launch
04
Emerging Markets
Lightweight PWA for a fintech product targeting low-bandwidth markets
72% reduction in data consumption per session
Flexible Engagement
Partnership structures tailored to your scale and velocity.
PWA Audit and Upgrade
We run a Lighthouse audit on your existing web app, implement service workers, add installability, and configure offline support. Fast ROI on an existing web product.
- Defined Scope
- Fixed Budget
POPULAR
Full PWA Build
End-to-end PWA development, architecture, design, service worker implementation, push notifications, offline sync, QA across browsers, and post-launch performance validation.
- Full Integration
- Infinite Scalability
PWA + Native App Bundle
PWA built alongside a React Native or Flutter app sharing the same backend and design system, giving you web, iOS, and Android coverage from one cohesive codebase strategy.
- Defined Scope
- Fixed Budget
"
"iSkylar transformed our legacy banking app into a modern, lightning-fast experience. Their AI-driven approach saved us months in engineering time."
JD
James Donovan
CTO, GlobalFin
"
"The level of technical precision and UI craftsmanship is unmatched. They don't just build apps; they build business advantages."
SL
Sarah Lin
Product Head, LuxeRetail
Frequently Asked Questions
What is a Progressive Web App and how is it different from a regular website?+
A PWA is a website enhanced with service workers, a web app manifest, and offline capabilities. Unlike a regular website, it can be installed on a home screen, work without a connection, send push notifications, and load instantly from cache.
Does a PWA work on iOS as well as Android?+
Yes, with some differences. iOS Safari supports PWA installation, offline caching, and basic service worker functionality. Web push notifications on iOS require iOS 16.4+ with the app installed to the home screen.
Can I convert my existing website to a PWA without rebuilding it?+
In most cases yes. Adding service workers, a web app manifest, and offline caching to an existing React, Angular, or Vue app is typically an incremental process rather than a rebuild.
What Lighthouse score should a PWA achieve?+
A production PWA should score 90+ across Performance, Accessibility, Best Practices, and SEO on Lighthouse, with 100% PWA compliance. We track these scores throughout development and benchmark on the live environment at launch.
Who owns the code?+
You do. All source code, service worker configuration, manifest files, and deployment setup are fully transferred at project close.
Ready to build your breakthrough?
Contact us today for a technical consultation and a detailed project estimate.
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