Simple Flashlight - A clean flashlight with an extra bright display and customizable stroboscope.
MIWIFI by Xiaomi - Wifi router beta with a twist: you build it yourself
Torchie - Touch to Torch
Wifi Porter - Connect guests to your network quickly
Screen Torch Advanced 2 - "Screen Torch Advanced 2", is an handy torch program. It only uses devices' backlight.
Anyfi - WiFi mesh network of smartphones