The most likely refers to the latest version of the Haylou Fun health and fitness app , which recently updated to version 3.7.5 . Application Overview App Name: Haylou Fun Current Version: 3.7.5
Copy the .obb file (located in the Android/obb folder) to your phone's internal storage path: /Android/obb/ . Install the base .apk file normally. Download APK File [XAPK] v3.7.5
Ensure "Install from Unknown Sources" is enabled in your browser or file manager settings. The most likely refers to the latest version
Use tools like the XAPK Installer on Google Play or the official Uptodown App Store to automate the process. Manual Method (Renaming): Rename the file extension from .xapk to .zip . Extract the contents to a folder. Ensure "Install from Unknown Sources" is enabled in
XAPK (A package format that includes the base APK plus OBB data files) License: Free Requirement: Typically Android 5.0 or higher Installation Guide for XAPK
If you have an older version of the app already, you may need to uninstall it first before the new XAPK will install. Download Haylou Fun V3.7.5 for Android | Uptodown.com
You generally need at least twice the file size (approx. 200MB+) available to extract and install an XAPK.