Which sentence uses a contraction incorrectly? I’d never seen a tornado until last year.
They’ve both got wondrous writing talent.
We’ve got an urgent appointment to attend.
The dog knew it’s job was to stop trespassers.

there is 2 main differences, basically which are the users and the market. the other difference is the kind of content

people who use tik tok are mainly people from east asia, kind of like the app douyin. musically, on the other hand, are used by people from america or european countries.

while tik tok videos show things like daily life videos, comedy, or just funny videos, musically are like people mimicking songs with their own actions, 'imitate' singers and video clips.

hope this !

never read it so if i had i would definitely you sorry.