An app on the home screen, without the app store in the way.
A Progressive Web App is a website that behaves like a mobile app: installable from a URL, usable when the network drops, able to send a push notification, and still one codebase instead of two.
FUEiNT Technologies is a software studio in Coimbatore, India, building Progressive Web Apps since 2014 — service workers, web app manifests, offline-first architecture and push notifications, installable straight from the browser.
What we actually build.
A PWA is a set of specific browser capabilities, each of which has to be implemented deliberately. These are the ones that make the difference.
Your existing website or web app converted into a fully functional Progressive Web App, rather than rebuilt from nothing.
Applications designed to give a usable experience regardless of connectivity, with the caching strategy chosen per resource instead of one blanket rule.
Fast, installable shopping experiences — which is where the conversion difference shows up first and most measurably.
Re-engagement through the Push API, the same way a native app would, with no store review sitting between you and the message.
Web App Manifest, icons, splash screens and HTTPS, so the install prompt actually appears rather than silently failing its criteria.
IndexedDB for the data the app needs when it is offline, and Workbox for the caching rules around it.
How a PWA engagement runs.
The existing site is measured against the installability criteria and against what it does when the connection drops. That gap is the scope.
Not everything should. We agree which journeys must survive a lost connection and which can honestly say "you are offline".
Service worker, manifest, caching strategies and the local data layer, so the app opens instantly on a second visit.
Across devices, browsers and screen sizes, including the throttled connection your customers actually have.
Deployment, then installs and re-engagement measured, because a PWA that nobody installs is just a website.
- The site or app URL, and access to a staging copy if there is one.
- The journeys that must still work with no signal.
- Whether you want push, and what you would send with it.
- App icons and brand assets, or a note that we are making them.
Questions we are actually asked.
What is a PWA, exactly?
A Progressive Web App is a website that looks and behaves like a mobile app. It uses modern browser capabilities — service workers, a manifest, background sync — to deliver an app-like experience without being distributed as an app.
PWA or a native app?
Development cost is low for a PWA because it is one codebase, and high for native because it is iOS plus Android. Distribution is a URL rather than the app stores. Discoverability is high through SEO where a native app depends on app-store optimisation. Where you need deep device integration, native still wins — but that is a smaller set of cases than it used to be.
Can you convert our existing website?
Yes. PWA conversion — turning an existing website or web app into a fully functional Progressive Web App — is the most common version of this job.
What makes it work offline?
Service workers intercept network requests and serve cached responses, IndexedDB holds the data the app needs locally, and Workbox manages the caching strategies. Together they mean a flaky connection is an inconvenience rather than a stop.
Can it send push notifications?
Yes, through the Push API — the same re-engagement a native app gets, without an app store between you and your user.
The work either side of this one.
Tell us what has to keep working with no signal.
That single answer decides most of a PWA’s architecture. Write two sentences and you will get a straight view of what it takes.
Saravanampatti, Coimbatore, TN, India — 641035
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