If your power went out last week due to Sandy, you know how important a flashlight can be. We recommend buying an actual flashlight so you can conserve your smartphone battery, but, if for some reason, a flashlight is unavailable, you should download a free flashlight app for your smartphone. The app utilizes your phone's camera flash and turns it into a makeshift flashlight. This app also has an SOS feature that will signal an emergency using morse code. Beware: Using this app for prolonged periods of time will drain your battery.

Click here to download it now from Apple App Store, Free 

Click here to download it now from Google Play Store, Free