Please answer the following question: Given this review: "Helped me hugely improve battery life Really good app. No problem installing it on my SG3 a few days ago. Since then it's helped me track down why the phone wasn't going to sleep - it's now been on best part of two days since the last charge with 15% battery still left. Try using BBS with DS Battery Saver Pro for best life." Would you recommend this app to a friend? Not at all, No, Maybe, Yes, or Definitely?
A:
Definitely