Review of Auto Best Brightness Level powered by the Slant community.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Low on battery life
Doesn't work in the background thus helping for lower usage on battery life.
Pro Allows user configured and saved settings
Has a slider which allows manually selecting brightness level and offers an option to save that setting for latter use.
Pro It actually works
Pro 100% free
No annoying ads or pop-ups, no subscriptions - completely free!