Yes. Audit Tickmarks runs in Excel on Windows, Mac, the web (excel.office.com), and iPad, with Microsoft 365 or Office 2021 and later.
Two nuances:
- The drawing features (image marks, number badges, circles, boxes, arrows, notes) need Excel’s Shapes API, which every current Microsoft 365 build and Excel 2021+ has. On an older Excel the pane tells you plainly; all text and emoji marks still work there.
- One license covers you across your devices (Personal: up to 3), and your custom marks move between them with Export/Import in Settings.
Excel 2019 and older perpetual versions are below the add-in’s platform floor and are not supported.