Flow by Plume Labs - The smart air quality tracker to help you find clean air

Splittable - Shared living made simple

Pollen Count Chrome Extension - Quick and light pollen checker for your local area. Simply enter your postcode, zip code or town/ city name and it will list pollen counts for up to 15 different plants from trees to grasses and weeds.

Splitwise - Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!

AirVisual - Air quality information you can trust

/Tab - The simple way to split a bill among friends.