Back up my iPhone using Time Machine app on Macbook

herodekm wrote:

I'm wondering if I can back up my iPhone using Time Machine app on Macbook.

No Time Machine is used to backup the data on your Mac to an external drive. You can not use Time Machine to back up your phone.

When I will back up everything using Time machine app on Macbook to an external drive will it bring a backup of the iPhone to the same external drive? So I don't need to keep the backup on my Macbook.

Yes, if that's what you want to do.

Thanks for the answers.

When I will back up everything using Time machine app on Macbook to an external drive will it bring a backup of the iPhone to the same external drive?

Yes, as KiltedTim wrote.

So I don't need to keep the backup on my Macbook.

Be careful with that. If you delete the iPhone backup on your MacBook, that backup becomes a candidate for deletion on your Time Machine backup.

Anything you delete from your MacBook becomes a candidate for deletion. When you delete something from your Mac, Time Machine assumes you no longer want it. TM will retain backup copies of those files as long as it can, but when it needs additional space for more recent backups, older ones are deleted first.

Best thing to do to keep all bases covered, backup your iPhone to your Mac and do an iCloud backup as well.