Duesday puts your total monthly subscription spend in the menu bar, next to the clock — one number you can't ignore. Click it: every renewal sorted by date, this week's charges, and alerts before anything bills, including free trials about to convert, with a cancel link one click away. Adding takes ~10 seconds — 215 services built in, prices kept current automatically. No bank login, no account, no tracking — your data never leaves your Mac. One-time $9.99, universal for Apple Silicon and Intel.