What would be the ★-rating of this review (★ being the lowest and ★★★★★ being the highest)? "This app crashes on my phone and it doesn't accept my credentials when I try to sign on"
★★★

What would be the ★-rating of this review (★ being the lowest and ★★★★★ being the highest)? "Thank you for such a good app. The Best App Ever. Each Update has a very new and noticeable improvement. I love it."
★★★★★

What would be the ★-rating of this review (★ being the lowest and ★★★★★ being the highest)? "Its very low functions"
★

What would be the ★-rating of this review (★ being the lowest and ★★★★★ being the highest)? "Good"

★★★★★