PusharooWeb push vs. mobile app push notifications
On the lock screen they look almost identical. Underneath, one needs an app in the App Store and Play Store; the other needs a website and a small service worker file.
- App push needs an installed native app; web push needs only a website the visitor subscribed to.
- On Android and desktop, web push looks and behaves very much like app push.
- On iPhone, web push works only for sites added to the Home Screen (iOS 16.4+).
- If you don’t already have an app, web push gets you most of the benefit without building one.
How each one is delivered
| Web push | App push | |
|---|---|---|
| Receiver on the device | A service worker registered by the browser | The installed app |
| Delivery network | Browser vendor’s push service (FCM for Chrome, Mozilla autopush, Apple for Safari, WNS for Edge) | APNs (Apple) or FCM (Android) |
| Sender authentication | VAPID keys — no developer account needed | Apple developer account + certificates/keys; Firebase project |
| Standards | Open web standards (Push API, RFC 8030/8291/8292) | Platform-specific SDKs |
| Install friction | None on desktop/Android; Add to Home Screen on iPhone | App store download |
The web version is built on open standards, explained step by step in how web push works.
Feature differences that matter
- Images and buttons: Chrome and Edge on Windows and Android show large images and up to two action buttons; Safari and Firefox show text and icon only. Native apps get richer layouts everywhere.
- Badges and sounds: apps can set custom sounds and app-icon badges; Home Screen web apps on iOS can use the Badging API, but custom sounds aren’t available on the web.
- Silent/background pushes: browsers require every push to show a notification (Chrome’s
userVisibleOnly), so there are no silent data pushes on the web. - Deep links: both open a URL or screen; web push simply opens a page on your site.
The iPhone question
This is the biggest practical difference. Since iOS and iPadOS 16.4, Apple supports standard web push — but only for websites the user has added to the Home Screen and opened from that icon. A regular Safari tab can’t subscribe. So on iPhone, web push reaches your most engaged visitors (people who saved your site), while an app reaches everyone who installed it. Our iPhone guide explains the flow, and PWA push notifications covers the manifest you need.
Cost and effort
Building and maintaining iOS and Android apps is a significant ongoing cost: two codebases (or a cross-platform framework), store reviews, OS updates and developer accounts. Web push asks for one file at your site root and a script tag. If your only reason to build an app is notifications, web push is almost always the cheaper route.
When an app is still worth it
- Your product is used daily for long sessions (messaging, banking, fitness).
- You need offline-first features, hardware access or background processing.
- Most of your audience is on iPhone and unlikely to add a site to the Home Screen.
- You need silent data pushes or custom notification sounds.
If none of these apply, start with web push. You can always add an app later — and if you do, a multi-channel platform like OneSignal may make sense (see our honest comparison).
Questions
Do web push notifications look different from app notifications?
On Android and desktop they look almost the same, with the browser name or site domain shown as the source. On iPhone, Home Screen web app notifications look like any app’s.
Can a website send notifications to an iPhone without an app?
Yes, on iOS/iPadOS 16.4 or later, after the visitor adds the site to the Home Screen, opens it from the icon and allows notifications.
Is web push less reliable than app push?
Both depend on the platform push services and the device being online. Web push subscriptions can expire when browser data is cleared, so good tools clean them up automatically.
Keep reading
Push notifications: what the term actually means
The plain meaning of “push”, the three kinds of push notification and how each one is controlled.
PWA push notifications on iOS and Android
Manifest, service worker, iPhone Home Screen requirement, Android install, badging and a setup checklist.
Web push on iPhone and iPad, explained honestly
The Home Screen rule, the manifest you need, and how to guide iPhone visitors without friction.
How web push works, step by step
Push API, service workers, VAPID keys and encryption — the full technical path of a notification.
More in Basics: What are web push notifications? · Browser push notifications: who supports what · Web push vs. email: which to use, and when · Push notifications vs. SMS text messages · All guides
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