This video discusses how popular smartphone apps could expose your personal information to cyber criminals. They state "The top ten flashlight apps today that you can download from the Google Place Store all have Malware". Now I'm not sure if that has changed since this was originally posted, buy why take a chance? If your phone has a built-in flashlight, use that instead.
Watch the entire video as towards the end they tell you what can be done to remove the app successfully.