What would be the ★-rating of this review (★ being the lowest and ★★★★★ being the highest)? "Best & free"
★★★★★
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What would be the ★-rating of this review (★ being the lowest and ★★★★★ being the highest)? "Follow the material icon guidelines"
★★★★
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What would be the ★-rating of this review (★ being the lowest and ★★★★★ being the highest)? "Amazing I really love it i wanted to update this app"
★★★★★
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What would be the ★-rating of this review (★ being the lowest and ★★★★★ being the highest)? "Nice but it is not working in some apps"

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
★★★★★
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