Expiry Manager

Expiry Manager vs. a Spreadsheet

A spreadsheet can list expiry dates, but it can't remind you before one arrives, read a date off a scanned document for you, or notify a teammate - Expiry Manager does all three natively, which is the actual point of tracking a date in the first place.

Feature comparison
CapabilitySpreadsheetExpiry Manager
List expiry datesYesYes
Automatic remindersNoYes
Scan a document to extract its dateNoBuilt in, per item
Team/family sharing with ownershipManual, error-proneBuilt in
Recurring/renewing itemsManual re-entryAutomatic

Spreadsheets are a reasonable starting point for tracking a handful of dates, but they're passive - they only tell you what's expiring if you remember to open them and look.