The following was copied from the vBulletin System Requirements web site page for their latest version: https://forum.vbulletin.com/forum/v...estions/4387853-vbulletin-system-requirements
"Mobile Browsers
These browsers may encounter limitations with some features (e.g. Site Builder and Richtext Editing) due to the limitation of the device.
Chrome on Android - Latest Version
Safari on iOS - Latest Version"
I don't use a mobile for UU, I only use my Mac. And the reference is to their latest version, not v4, which is the one that UU is on, and obvioulsy outdated.