Check the FAQ first
Most questions about recalculation, ranges, license limits, and performance are already answered there.
Browse the FAQ →Report a bug or send feedback
Inside Google Sheets, open the add-on sidebar (Extensions → Custom Count & Sum → Open sidebar) and use the feedback form at the bottom. It goes straight to our team.
Billing & license questions
For license, trial, or billing questions, see the pricing page or manage your subscription from the sidebar's Functions tab.
Opting out
Custom Count & Sum only runs inside spreadsheets where you've explicitly installed it. To remove it, open the spreadsheet, then go to Extensions → Add-ons → Manage add-ons, find Custom Count & Sum, and select Remove.
If your organization's admin installed it for your domain, you can disable it individually via Google Workspace Marketplace → Manage → toggle it off for your account, or contact your Workspace admin.
Uninstalling immediately revokes the add-on's access to your spreadsheets — no data is retained beyond what's described in our Privacy Policy.