<s>
Dropbox	B-Algorithm
Carousel	I-Algorithm
was	O
a	O
photo	O
and	O
video	O
management	O
app	O
offered	O
by	O
Dropbox	B-Application
.	O
</s>
<s>
The	O
third-party	O
native	O
app	O
,	O
available	O
on	O
Android	B-Application
and	O
iOS	B-Application
,	O
allowed	O
users	O
to	O
store	O
,	O
manage	O
,	O
and	O
organize	O
photos	O
.	O
</s>
<s>
Photos	O
were	O
organized	O
by	O
date	O
,	O
time	O
and	O
event	O
and	O
backed	O
up	O
on	O
Dropbox	B-Application
.	O
</s>
<s>
It	O
competed	O
in	O
this	O
space	O
against	O
other	O
online	O
photo	O
storage	O
services	O
such	O
as	O
Google	O
's	O
Google	B-Algorithm
Photos	I-Algorithm
,	O
Apple	O
's	O
iCloud	B-Application
,	O
and	O
Yahoo	O
's	O
Flickr	B-Algorithm
.	O
</s>
<s>
Chris	O
Lee	O
,	O
Dropbox	B-Application
's	O
head	O
of	O
product	O
development	O
for	O
Carousel	O
described	O
the	O
app	O
as	O
an	O
add-on	O
to	O
Dropbox	B-Application
,	O
a	O
“	O
dedicated	O
experience	O
for	O
photos	O
and	O
videos	O
”	O
and	O
a	O
space	O
for	O
“	O
reliving	O
personal	O
memories	O
”	O
.	O
</s>
<s>
Much	O
of	O
the	O
features	O
in	O
Carousel	O
come	O
from	O
Snapjoy	O
,	O
a	O
photo	O
start-up	O
,	O
that	O
Dropbox	B-Application
acquired	O
on	O
December	O
19	O
,	O
2012	O
.	O
</s>
<s>
When	O
Carousel	O
was	O
launched	O
,	O
it	O
marked	O
amongst	O
many	O
others	O
,	O
a	O
series	O
of	O
acquisitions	O
made	O
by	O
Dropbox	B-Application
to	O
prep	O
up	O
before	O
opening	O
its	O
stock	O
for	O
public	O
offering	O
.	O
</s>
<s>
In	O
December	O
2015	O
,	O
Dropbox	B-Application
announced	O
that	O
Carousel	O
would	O
be	O
shut	O
down	O
and	O
some	O
Carousel	O
features	O
would	O
be	O
integrated	O
into	O
the	O
primary	O
Dropbox	B-Application
application	O
.	O
</s>
