Nest Thermostat (3rd gen) - A slimmer, sharper, sexier thermostat
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Tuya Smart - Tuya Smart is a free to use Lifestyle Application by Tuya Inc.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Netatmo - Control your heating wherever you are
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.