tooltip

As nouns the difference between tooltip and pointer

is that tooltip is tooltip while pointer is anything that points or is used for pointing.

As nouns the difference between tooltip and title

is that tooltip is an element of a graphical user interface in the form of a box of text that appears when a cursor is made to hover over an item; normally used to explain the function of the item while title is a prefix (honorific) or suffix (post-nominal) added to a person's name to signify either veneration, official position or a professional or academic qualification. See also :Category:Titles.

As a verb title is

to assign a title to; to entitle.

As nouns the difference between tooltip and popup

is that tooltip is an element of a graphical user interface in the form of a box of text that appears when a cursor is made to hover over an item; normally used to explain the function of the item while popup is a pop-up.

Hovertext is likely misspelled.

Hovertext has no English definition.

As a noun tooltip is

an element of a graphical user interface in the form of a box of text that appears when a cursor is made to hover over an item; normally used to explain the function of the item.