AppTweak was the first ASO tool providing the exact Keyword Search Popularity as provided by the Apple App Store.
The Volume is an indicator that shows you how popular a keyword is on a scale from 5 to 100. The higher the Volume, the higher the keyword popularity. Since the median is at 27, Apple’s scale is pretty concentrated around smaller values. A “high” Volume is therefore already considered above 27.
The Keywords Analysis table will enable you to filter keywords by volume, which will make it easier for you to build different keyword lists.
You can also check our ASO blog for more information on "Volume" and tips on a deeper keyword research