PredictionIO

Universal Recommender — Open source recommendation engine on Spark + Elasticsearch

BUSH — Snoop Dogg's latest album, produced by Pharrell

Citymapper for AppleWatch — One of the best public transit apps. Now on your wrist

Dark Sky for Apple Watch — Weather Radar, Hyperlocal Forecasts, and Storm Alerts

Foursquare on Apple Watch — Places you’ll love, without having to look at phone

Binpress — The Marketplace For Commercial and Open-Source Projects

Foursquare 8.0 — Learns what you like and leads you to places you love

Find a Reporter — Submit AngelList URL and find the best TechCrunch reporter

Kano — A computer and coding kit for all ages

Filecoin — The decentralised storage network

PredictionIO — Open source machine learning to predict/learn user behavior

EquityZen — Got private stock? Unlock your net worth and get liquid.

DiDi — iPad powered teddy bear

Hearst Castle App — Your personal, mobile tour guide

Holidog — Airbnb for dogs - no joke! =P

SoundBetter — Marketplace for musicians and music production professionals

EquipBoard — The Ultimate Gear Site for Fans

Remark — Google Docs for Video Projects

VenueSpot — Find a venue for your event w/in 72 hours

Slack for Apple Watch — All your team communication in one place.