Progressive Web Apps 5 lessons
  1. 1 App behaviour without an app store
  2. 2 The service worker sign in to open
  3. 3 Installability and offline data sign in to open
  4. 4 Building and shipping one sign in to open
  5. 5 Deciding whether to build one sign in to open
Course overview
Data: video · change

This lesson: 122KB

Progressive Web Apps · Lesson 1 of 5

App behaviour without an app store

Know what a PWA gives you.

A progressive web app is a website that can be installed to a phone's home screen, work offline, and behave like an app, without going through an app store.

Why this matters particularly in Pakistan. App downloads cost data, which people pay for. Phone storage is limited on cheaper devices. And getting somebody to install an app is a substantial barrier compared with opening a link. A PWA removes all three: it loads like a website, works offline afterwards, and can be added to the home screen if the person wants it.

What you get. Offline capability. Installation to the home screen. Faster repeat visits. Push notifications on Android. And one codebase serving desktop, mobile and installed use.

What you do not get. The app stores, and the discovery and credibility that come with being listed. Some device capabilities. And on iOS, a meaningfully more limited experience than on Android, which is worth knowing before you commit: Apple supports the core of it and restricts several features.

Where it is the right answer. Content sites, e-commerce, booking, internal tools, anything used occasionally rather than daily, and anything where the install barrier is what is losing you users.

Where a native app is better. Heavy device integration, anything needing the store for credibility, and anything used daily where users expect an icon.

And it is not all or nothing. Adding offline support and installability to an existing site is incremental, which is the main practical advantage.

Lab — try it yourself

Check how much data your app or site costs a user to install or load. That number is the barrier a PWA removes.

Check what you learned

Create your free BvLogic ID to take the quiz and record your score.

Create your BvLogic ID
Continue to lesson 2 Up next 2. The service worker