My approach to this was to slow the song right down to allow me to easily write it down. I’d write it out basically as it was in the app initially and I’d mark things like the start of the chorus and each verse. Once you’ve got those things noted it should start to become easier to spot repeating patterns. Often each of the verses will feature the same chords, and likewise the chorus will be a slightly different set of chords. After that you might able write out a song in a simple format as my example below (note these are just random chords not specific to your song
VERSE - A D E A D E
CHORUS - E E D D A A
VERSE2 - as VERSE 1
CHORUS x2
OUTRO - A D E
I don’t know if this helps at all?