Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs