Flashie is the fastest and most easy to use flashlight app in Windows Phone store with tons of features like
-Fast start-up (no splashscreen)
-Runs under lockscreen
-Blink mode (with settings to change interval)
-Toggle flash using phone's camera button
-White screen mode for device without camera flash like Lumia 520/525, etc
-Simple and elegant design
-Background matches phone's accent color
-Transparent tile to support WP8
