Nobody likes unexpected and annoying visitors. But if you open your door every time someone knocks at your door, you are bound to get some unexpected folks bothering you with marketing material and dubious requests. smartbell for iOS & Android is a handy solution that lets you see who is at your door before opening it. It is a WiFi doorbell that connects to the Internet and lets you chat with your visitors.
smartbell lets you reject visitors with ease. It has a privacy (do not disturb) mode. It supports multiple users. The motion sensor lets you capture photos of people who visit you. The device also has night vision and encryption for your security. Want to leave your visitors a video message when you are not home? No problem. This cool project is on Kickstarter right now.