Amplichat - Chat with people nearby.
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
Anyfi - WiFi mesh network of smartphones
Mailjoy - Delightfully easy direct mail marketing. A DIY direct mail tool created for marketing and growth teams. Design, mail & track personalized direct mail postcards and letters. Digital marketers use Mailjoy to send data-driven mail campaigns.
Trump Filter - Chrome extension that removes Donald Trump from the internet
The Simple Postcard - Text a photo to mail it as a postcard