Looking on the internet deeply has found these results:

that's it is the most popular phrase on the web.

that's all 16,330,000 results on the web	that's it 152,300,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
"That's All" is a 1952 song written by Alan Brandt and Bob Haymes. It has been covered by many jazz and blues artists. The song is part of the Great American ... "That's All" is a song by Genesis. The song, a group composition with lyrics written by lead singer/drummer Phil Collins, appears as the second track on their ... Apr 14, 2006 ... GENESIS Invisible Touch (Full Album) (Vinyl) Duration: 45:41. by Rob Madden ... GENESIS That's Allby YouTube · Genesis That's All ... Mix	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

that's all

16,330,000 results on the web

that's it

152,300,000 results on the web

More popular!

"That's All" is a 1952 song written by Alan Brandt and Bob Haymes. It has been covered by many jazz and blues artists. The song is part of the Great American ...
"That's All" is a song by Genesis. The song, a group composition with lyrics written by lead singer/drummer Phil Collins, appears as the second track on their ...
Apr 14, 2006 ... GENESIS
Invisible Touch (Full Album) (Vinyl)
Duration: 45:41. by Rob Madden ...
GENESIS
That's Allby YouTube · Genesis
That's All ... Mix

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.