SubChecks vs Spreadsheet
A spreadsheet can store a list. SubChecks tracks renewals, sends reminders, and shows you exactly where your money goes.
You set one up with good intentions. Then you forget to update it. The renewal dates drift. You add a new subscription but skip the formula. The totals go wrong. Then you miss a charge you meant to cancel. A spreadsheet is a static list. SubChecks is a live tracker that works even when you forget to open it.
Spreadsheets are great for lists. SubChecks is built for tracking. If you have ever been charged for something you meant to cancel, that is the difference.