Flashlight

This flashlight app is very safe and does not run in the background. It's easy to use interface, helps you out in any emergency situation. Also, the notification feature helps you out in making sure the app has completely closed instead of checking the "recent apps" section again and again. Another good feature is that, you can turn off the notification sound when you are in silent zones. The image in the app (flashlight picture), changes according to the status of your flashlight, which comes in handy for senior citizens. The main advantage is that the app requires no network access and is free of any advertisements.