I don't think the app alone will directly make you better at improvisation as this comes only from playing imo but it might make you better at practicing improvisation.
Personally I find when practicing alone I often get stuck on playing the same phrases and chords.
The app can help visualizing and thinking of new shapes or places to play that maybe I wouldn't have though of naturally. This brings some most welcomed novelty to my playing until I get bored with it again.
Rince and repeat ad vitam æternam as I don't think one can ever reach a eternal state of contentment with one's playing. Or in other words, there is no leaving intermediate guitaristry I guess but that's okay (:
Personally I find when practicing alone I often get stuck on playing the same phrases and chords.
The app can help visualizing and thinking of new shapes or places to play that maybe I wouldn't have though of naturally. This brings some most welcomed novelty to my playing until I get bored with it again.
Rince and repeat ad vitam æternam as I don't think one can ever reach a eternal state of contentment with one's playing. Or in other words, there is no leaving intermediate guitaristry I guess but that's okay (: