Progressive Web App Development
An installable, app-like experience that opens from a browser link, adds an icon to the home screen, and keeps working with a limited connection, without an app store in between. GullySystem builds it when that middle ground suits your users.
Overview
A progressive web app is a website built to behave like an installed app: it can be added to a phone's home screen, send push notifications, and cache enough data to keep functioning with a weak or briefly interrupted connection. It is reached and updated the same way as a web application, but feels closer to a native app in daily use.
Why Businesses Choose This Instead of a Native App
No App Store Approval
Updates go live the moment you release them, with no review queue and no version fragmentation across users.
One Build for Every Device
The same application runs on Android, iOS and desktop browsers, instead of maintaining separate native builds.
Lower Barrier for Occasional Users
A dealer, vendor or customer who uses the tool rarely can open it from a link without an install step, and still add it to their home screen if they choose.
What Goes Into a PWA Build
Home Screen Install Prompt
A native-feeling install banner that adds an icon and launches full-screen, without a store visit.
Offline Caching
Key screens and recent data available for viewing even when the connection briefly drops.
Push Notifications
Browser-based push alerts for orders, approvals or updates, supported on Android and desktop, with more limited support on iOS.
Where a PWA Is Not Enough
For deep offline data capture, heavy background processing, or full access to device hardware such as advanced camera controls or biometrics, a native or React Native and Flutter mobile application, both covered separately, goes further than a browser-based app can. Push notification support on iOS is also more limited than a fully native app.
Frequently asked questions
Is a progressive web app a replacement for a native mobile app?
For many customer and dealer-facing use cases, yes. For workflows needing deep offline data capture, heavy camera or sensor use, or reliable push notifications on iPhone, a native or React Native and Flutter application, covered separately, is the stronger choice.
Do users need to visit an app store to install it?
No. Users open a link and are prompted to add the app to their home screen directly from the browser, with no app store account or download step involved.
What drives the cost of building a progressive web app?
The number of screens, how much offline caching is required, and how much of the experience needs to feel native — icons, splash screens, install prompts — versus a standard website.
What decides how long a PWA build takes?
Because it is built on standard web technology, development is generally faster than a native app, with the main variable being how much offline behaviour and caching logic the workflow requires.
Will it work the same on iPhone as on Android?
Core functionality works on both, but Apple limits some capabilities on iOS, particularly around push notifications and background sync, compared with Android and desktop. We will flag any such limitation against your specific requirements before development.
Who owns the progressive web app once it is delivered?
You do. The full source code and hosting setup are handed over, and it can be maintained by any web development team afterwards.
What do we need to confirm before development starts?
The screens and offline scenarios that matter most to your users, and whether push notifications are a hard requirement, since that affects whether iOS users need a different fallback.
Tell us what you need.
Send a short brief and one of our engineers will come back to you — usually the same day.
- No obligation
- We reply the same working day
- Your details stay private