Channel comparison
Mark Rober vs A4
Side-by-side channel stats, birthdays, and milestones.
14 years
Channel age
11 years
79.6M
Subscribers
92.6M
18.0B
Total views
37.7B
263
Videos
1.0K
Oct 20, 2011
Created on
Nov 29, 2014
98 days
Next birthday
138 days