Add an install prompt to Squarespace
To add an install prompt on Squarespace, paste the InstantPWA snippet into Code Injection → Header via Settings → Advanced → Code Injection → Header. The popup captures the browser's native install signal where supported and falls back to a guided walkthrough on iOS Safari, so every visitor sees a clear path to installing your Squarespace site as an app.
Steps
- 1
Open Code Injection → Header
Go to Settings → Advanced → Code Injection → Header.
- 2
Paste the InstantPWA snippet
Drop the one-line async script tag in the Squarespace head section — no build step or dependency install.
- 3
Configure the trigger
In your InstantPWA dashboard, set when the popup appears — on page load, after N seconds, or after a scroll/engagement threshold.
- 4
Publish
Save/publish in Squarespace so the change goes live — most builders require an explicit publish step before custom code runs.
- 5
Verify on a phone
Open your live Squarespace URL on a mobile device (not the editor preview) to confirm the popup renders.
Constraints to know
- Code Injection requires a Business plan or higher — Personal plan sites cannot add custom scripts at all.
- Squarespace strips code injection from the mobile app editor preview; test on the published desktop or mobile browser URL.
FAQ
Does the install prompt work on iOS Squarespace visitors?+
iOS Safari never fires the native beforeinstallprompt event, so InstantPWA shows a share-sheet walkthrough instead — visitors still get a clear add-to-home-screen path.
Will this conflict with other scripts on my site?+
No — InstantPWA is a single first-party async script with no third-party dependencies, so it doesn't block or compete with analytics or chat widgets.
Do I need to touch anything else in Squarespace besides Settings?+
No — the head snippet is the only integration point; InstantPWA hosts the manifest and service worker for you.