Progressify
Generatify
Lightify
Rankify
SnapshotifyNavigation flow
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Pro. Loads pages with a fade instead of the white flash of a full page load, which is the single most noticeable difference between a website and an app.Sub-options let you add a progress bar during the transition, choose the transition style, and enable a compatibility mode for themes that break under it.
Data safety
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Pro. Saves what a visitor has typed into a form before they submit it, and restores it if they reload the page or come back later. Valuable on long forms and on comment boxes.
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Keeps the saved values even after a successful submission. Leave this off for most forms, or the next visitor on a shared device sees the last person’s answers.
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Asks the browser to mark your cached content as persistent so it is not evicted when the device runs low on space. The browser decides whether to grant the request, often based on whether the app is installed and how engaged the visitor is.
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Pro. Registers cached, offline-capable pages in the browser’s own index, so the browser can surface them when the visitor is offline. Chromium-based browsers on Android only.
System integration
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Registers your app to open a custom URL scheme, so a link like
web+example:something launches your app and passes it the URL. Set both Protocol and URL.Custom schemes must begin with web+. The URL field is the path in your app that receives the value.toggle
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Pro. Lets your app appear in the operating system’s “Open with” list for chosen file types.Set File Action to the path that handles an opened file, and pick the MIME types under File Types. Supported types cover images (
image/png, image/jpeg, image/gif, image/webp), audio (audio/mp3, audio/mp4, audio/ogg, audio/wav), video (video/mp4, video/webm), and documents (text/csv, application/xml, application/json, application/pdf, application/zip).Only claim a type you can actually do something with. Registering for PDFs and then showing an error is worse than not registering at all.Makes your app a destination in the device share sheet, so a visitor can share a link or text from another app straight into yours.Set Share Action to the path that receives the share, and URL Query to the query parameter the shared URL arrives in. A typical setup points the action at your search or submission page.
Device feedback
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Pro. Brief haptic feedback on taps, on devices that support it. Use sparingly; constant vibration reads as a fault rather than a feature.
Activity awareness
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Detects when the visitor stops interacting, locks the screen, or switches away, and can prompt them to refresh when they return.
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Minutes of inactivity before the visitor counts as idle.
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Pro. Stops the screen dimming or locking while your app is open. Right for recipes, sheet music, workout timers, and live event pages. Wrong for everything else, since it drains the battery.
Background processing
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Pro. Holds requests that failed because the device was offline and replays them once connectivity returns. This is what makes offline forms reliable.
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Pro. Lets the browser refresh your cached content on its own schedule while the app is closed, so an installed app opens with fresh content rather than yesterday’s.The browser decides how often this runs, based on how regularly the visitor opens the app. You cannot set the interval, and an app that is rarely opened may never be synced.
Browser support
File handlers, protocol handlers, content indexing, periodic background sync, and background sync are Chromium features. Safari and Firefox implement few of them. Enabling one costs nothing on a browser that lacks it, but do not build a workflow that depends on it.