Why APK sites still advertise iOS buttons
APK websites copy each other. A fake IPA button of a few hundred kilobytes is often a zip of junk or a tracker page. iOS also does not allow random stores the way Android allows unknown sources. Sideloading with AltStore or similar tools is a different hobby and still does not magically produce a supported YMusic client.
What iPhone users can do instead
- YouTube Music or YouTube Premium if you want official background play and downloads.
- Keep youtube.com open in Safari — limited, but real.
- Ask a family Android phone to handle offline files if that is allowed in your house.
If you own both an iPhone and an Android
Install YMusic only on the Android device. Use the iPhone for calls and WhatsApp. That split is how many Indian and Indonesian households already live. Do not pay a stranger for a “premium iOS YMusic” file.