An app can be as simple as a program that turns a mobile phone into a flashlight to light your way at night.

VOA: special.2011.03.22

Several years ago, at age 60, my older cousin Torch (born at home by the light of a flashlight, or torch) had a seizure.

WSJ: A Doctor on How Physicians Face the End of Life

The C4 high output LED in this flashlight provides up to 180 lumens of light output and a runtime of 50, 000 hours for reliable and long lived operation.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner

Operators can also hold the switch down to run the flashlight in low mode, producing a 50 lumen light beam and a longer 12 hour runtime.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner