Altophobia vs. Acrophobia — What's the Difference?

Fear of heights.

Acrophobia is an extreme or irrational fear or phobia of heights, especially when one is not particularly high up. It belongs to a category of specific phobias, called space and motion discomfort, that share both similar causes and options for treatment.

Excessive fear of high places.

Phobia or strong fear of being high above ground level

A morbid fear of great heights