Optimizing My Favicon for PWA and Web Applications | by Zach Olson
Icon is not showing for “Add to Home Screen” on iOS Solution: iOS (as of 2025) prefers apple-touch-icon sizes (180×180). Add that separately. Also note that iOS requires your site to be served over HTTPS (except localhost) and have a valid service worker for PWA installation.
On a low-end Moto G device, the install banner appeared 200ms faster for Version B. More importantly, the home screen icon loaded immediately after install, whereas Version A showed a generic grey silhouette for 1.2 seconds.
(You can add a description of the image here. For example: "Our company icon in 192x192 pixels") icon-192x192.png
Leave some safe area around the edges of the logo to ensure it doesn't get cut off, especially if the phone applies a default shape (like a circle or rounded square) to all icons.
While Apple recommends 180x180 for iOS home screens, icon-192x192.png is often used as a fallback if an Apple-specific icon is missing. iOS will scale the icon down if necessary.
For any production web application targeting mobile users, generating a well-optimized, properly masked icon-192x192.png should be a non-negotiable step in the build process. Optimizing My Favicon for PWA and Web Applications
When the PWA launches, the browser displays a temporary splash screen while the assets load. The 192x192 icon is typically centered on this screen.
The Web App Manifest is a JSON file that tells the browser about your web application. The icons field requires a src (pointing to your icon-192x192.png ), sizes , and type (image/png).
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. On a low-end Moto G device, the install
The size of 192x192 pixels is particularly significant for several reasons. This size provides enough detail to be recognizable and aesthetically pleasing while being small enough to fit into various UI (User Interface) elements without overwhelming the layout. For instance:
1.0 Last Updated: 2026-04-12 Target Audience: Web developers, UI designers, technical project managers
The file is a critical asset in modern web development, specifically for Progressive Web Apps (PWAs) and mobile-optimized websites. It serves as the standard "high-density" icon that browsers use when a user adds a website to their mobile home screen. 🛠️ Role and Technical Purpose
Use the Maskable.app Editor . Upload your logo, ensure the entire subject fits inside the "Circle" preview, and export the 192x192 version.
Your PWA is only as strong as its weakest asset. Ensure icon-192x192.png is not it.