Carbon Copy Cloner is the app Mac people reach for when they want a local backup they have actually tested. Point it at an external drive and it writes a full copy of your disk, file for file, then keeps that copy current on a schedule or whenever the drive is plugged in. On APFS it takes snapshots, so you can go back to how a folder looked last Tuesday rather than only to the latest state. The task history is legible in a way Time Machine's is not: you can see what was copied, what was skipped and why.
One payment of $49.99 covers every Mac in your household for personal use, and that licence keeps working on CCC 5, 6 and 7. The boundary is the major version. CCC 8 will be a fresh purchase at a discount, and the app will not stop working if you decline it.
Do not buy it expecting an emergency boot disk. On Apple silicon, Apple no longer promises that a copied system volume will boot, and Bombich is upfront about that. What you get is a complete, mountable copy of your data that restores quickly from a drive on your desk.
If Time Machine has never let you down and you have no external drive routine, start with a drive, not with this.


