Ring products are based on a simple principle -- use your existing home Wi-Fi network to create a ring of security around your home. By hooking up to your Wi-Fi, Ring products use the free Ring app to alert you whenever someone approaches your door or comes in a range of a security camera. You can then view an HD video stream of the person and speak to them using two-way audio communication.
Neighborly is a social network which connects local people with each other and encourages collaboration between them, from both an altruistic perspective and a commercial one. Available now for free on iPhone and Android. Seller platform currently in Beta.