It is free and built into every Mac. It creates automatic, incremental backups of your apps, photos, and documents.
If you want a physical "Time Machine" for your desk or collection: Apple Time Machine review | Macworld time machine buy online
Most users searching for "Time Machine" are looking for . It is free and built into every Mac
While the software is free, you must buy an external drive to use it. You can find highly-rated external hard drives for Mac on Amazon or Walmart starting around $60–$130 . incremental backups of your apps