Why are American women deleting period-tracking apps after US court's abortion ruling?

After US' Supreme Court overturned 'Roe vs Wade' ruling that made abortion a constitutional right, there's apprehension that period-tracking apps could be forced to hand data to law enforcement authorities. This information could then be used should it indicate that a user of the app underwent abortion. The court upheld a Mississippi state law that bans abortion after 15 weeks.