Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Spreadsheet.com - Spreadsheets that come alive as applications
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
Grist - Grist makes it easy to transform spreadsheets into a custom database where data is truly actionable.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Survicate for Intercom - In-app surveys integrated with Intercom