Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.

Affinity - Relationship Intelligence, Reimagined

Google Calendar - Spend less time managing your day & more time enjoying it

Zapflow - Zapflow is a cloud-based tool for professional investors to manage their deal flows​.

Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.

Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.