Given the question: Given this review: "Thank you! My battery usage was so terrible I was about to buy a new phone. Using this app I managed to get idle usage from over 10% an hour to under 2% an hour! You just saved me heaps of money I'll gladly pay a few bucks to show my appreciation." Would you recommend this app to a friend? Not at all, No, Maybe, Yes, or Definitely?
The answer is:
Definitely