Get Rimote
Two halves. One remote.
The agent on your Mac, the app on your iPhone. Free, no account.
On your iPhone
The remote
Volume, media, sleep & lock, on the App Store.
iOS 16+ · free
On your Mac
The menu-bar agent
Signed & notarized by Apple. Open source.
macOS 13+ · .dmg · ~440 KB · free
1
Drag Rimote to Applications
Notarized by Apple, so it opens with a normal double-click.
2
Launch it once
It lives in your menu bar and shows a 4-digit PIN.
3
Enter the PIN on your iPhone
Pick your Mac in the app, type the PIN, done. Forever.