Jeff Cai

Communicate with databases like a human

Web applications to reduce human-time spent on shallow work.

Get inspired by examples of email sequences

Smart task manager built for easy collaboration

How to get your first 10,000 followers

Find anyone’s email address in just one click.

The ping pong leaderboard for awesome offices 🏓

U.N.-style translation on conference calls

Smart pill bottle with automatic tracking and reminders

Get rewarded for your healthy habits

Smarter cold emails for the savvy social marketer

Find all the email addresses related to a domain

Find anyone's email. No bounces.

Calculate the number of leads required to reach the sales

Free and crowdsourced database of business emails

The marketplace where tech companies compete to hire you!