Blurred is not a mobile Fortnite client. The software runs on Windows; a phone can only access browser-based interfaces where supported.
Blurred is designed for a Windows desktop PC and is not a native Android or iOS Fortnite tool. There is no official mobile APK or iPhone package on this site. A phone cannot replace the Windows PC that runs Blurred.
This distinction matters because some browser-based pages can still be viewed from a phone. That is remote browser access, not mobile support for the underlying software.
Where the web menu or Web Radar is exposed by the Windows PC, a browser on the same network may be able to open that interface. This can be convenient for reading or changing settings without keeping the settings page in the foreground of the game PC.
Use the Web Radar and Web Menu guides for the supported workflow. If a browser page does not load from your phone, the underlying Windows setup is still the primary environment to troubleshoot.
Do not install unofficial “Blurred Mobile”, APK, modded or repacked files that claim to be the official Fortnite mobile version. Use the official download page and check the requirements before installing anything.