Progressive Web App Development
Progressive Web App Developerfor EU and Swiss Teams.
Ten years building production React and Next.js. I turn websites and web apps into installable, offline-first Progressive Web Apps that load instantly, re-engage users with push notifications and reach mobile from a single codebase.
- Installable, app-like web apps
- Offline-first architecture
- Core Web Vitals performance
Why teams reach for a PWA
A native app is expensive to build and maintain, and a plain mobile website leaves reach and retention on the table. A Progressive Web App closes that gap.
Native apps cost twice
Separate iOS and Android codebases mean two builds, two review processes and two release cycles on top of your web app. For most commerce, content and SaaS products that is budget spent on plumbing rather than features.
Slow mobile web loses users
A heavy mobile site that reloads everything on every visit bleeds conversions and rankings. Without caching and a fast app shell, every tap waits on the network and users drop off before the page is usable.
No install, no offline, no return
A normal site cannot be added to the home screen, breaks the moment the connection drops and has no way to bring users back. You lose the install prompt, the offline session and the push notification that would have earned the next visit.
Who I build PWAs for
I work with product teams that want app-like reach and reliability without committing to a native build.
- An e-commerce brand that wants an installable, fast store without a native app
- A SaaS product that needs to work offline or on unreliable connections
- A media or content site chasing better mobile retention and load times
- A startup that wants app-store presence without two native codebases
- A team whose mobile web is slow and failing Core Web Vitals
- An agency that needs senior PWA depth on a client project for a few months
What I deliver
Installable app and web manifest
A configured web app manifest, icons, theme and a tested install flow so your product can be added to the home screen on Android and desktop and launches in its own window like a native app.
Offline-first service workers
A service worker with a caching strategy chosen per asset type, an app shell that loads instantly on repeat visits and a clear update and invalidation plan so the app stays usable when the network does not.
Push notifications and re-engagement
Web push wired up end to end, from permission prompt to delivery, so you can bring users back with order updates, reminders and announcements without owning a native app.
Performance and Core Web Vitals
LCP, INP and CLS measured against real field data and tuned: lean bundles, optimised images and the right rendering strategy, so the PWA is fast on the mid-range phones your users actually carry.
How an engagement works
Call and scope
You tell me the goal: offline use, mobile retention, an installable product or app-store reach. I scope the smallest useful engagement and send a quote and timeline.
PWA audit
I review your stack against installability, offline support and performance, and separate quick wins from the structural work, with the trade-offs written down.
Implementation
I add the manifest, service worker, caching strategy, push and performance fixes route by route, so you keep shipping while the app becomes installable and offline-ready.
Verify and hand off
I validate installability, offline behaviour and Core Web Vitals against real devices and field data, then leave your team able to maintain and extend the result.
Further Reading
How PWAs move real revenue
Progressive Web Apps are not a novelty: done right, faster loads, offline support and re-engagement translate into measurable retention and revenue gains. I wrote up where those gains come from and how to capture them on a real product.Read: Boost revenue with Progressive Web Apps →
Frequently Asked Questions
What is a Progressive Web App and why would I want one?
A Progressive Web App is a website built so it behaves like an installed app: it can be added to the home screen, works offline or on a flaky connection, loads instantly on repeat visits and can send push notifications. You get most of the reach and feel of a native app from a single codebase, without app-store gatekeeping or maintaining separate iOS and Android builds.
Is a PWA cheaper than building native iOS and Android apps?
Usually, yes. A native strategy means two codebases, two review processes and two release cycles on top of your web app. A PWA reuses your existing web stack and ships one codebase that runs everywhere, so for most content, commerce and SaaS products it is meaningfully cheaper to build and maintain. Native still wins when you need deep hardware integration, and I will tell you plainly when that is the case.
Can you turn our existing website or web app into a PWA?
Often without a rewrite. If your site is on React, Next.js or a similar modern stack, adding a web app manifest, a service worker with a sensible caching strategy and an install flow is usually an incremental project. I audit what you have, identify what blocks installability and offline support and deliver the changes route by route so you keep shipping throughout.
How do offline support and caching actually work?
A service worker sits between the app and the network and decides, per request, whether to serve from cache, from the network or from both. I pick the caching strategy per asset type: cache-first for the app shell and static assets, network-first or stale-while-revalidate for data, with a clear update and invalidation plan so users never get stuck on stale content. The result is instant repeat loads and a usable app when the connection drops.
Can a PWA be listed in the app stores?
On Android, yes. A PWA can be packaged as a Trusted Web Activity and published to the Google Play Store from the same codebase. On iOS, PWAs install to the home screen through Safari rather than the App Store, and I scope what is and is not supported on iOS up front so there are no surprises.
How do we start and how long does it take?
Book a call and tell me the goal: better mobile retention, offline use, an installable product or app-store reach without a native build. I scope the smallest useful engagement, usually a PWA audit or a focused build, send a quote and timeline within 24 hours, and you decide whether to continue into full implementation from there.
Get a senior read on your PWA
Tell me the goal: offline use, mobile retention, an installable product or app-store reach. I will reply with a scoped engagement and a timeline within 24 hours.
Book a PWA Consultation