<s>
Sync.in	B-Application
is	O
a	O
web-based	B-Application
collaborative	B-Application
real-time	I-Application
editor	I-Application
,	O
from	O
Cynapse	O
.	O
</s>
<s>
Sync.in	B-Application
is	O
based	O
on	O
EtherPad	B-Language
that	O
was	O
acquired	O
by	O
Google	B-Application
in	O
December	O
2009	O
,	O
and	O
released	O
as	O
open-source	B-Application
later	O
that	O
month	O
.	O
</s>
<s>
Sync.in	B-Application
uses	O
the	O
Freemium	O
financial	O
model	O
.	O
</s>
<s>
Pro	O
version	O
is	O
available	O
in	O
a	O
Software	B-Architecture
as	I-Architecture
a	I-Architecture
service	I-Architecture
model	O
and	O
offers	O
business-centric	O
functions	O
.	O
</s>
<s>
As	O
of	O
May	O
2013	O
,	O
creation	O
of	O
public	O
notes	O
has	O
been	O
disabled	O
on	O
the	O
sync.in	B-Application
domain	O
.	O
</s>
<s>
Sync.in	B-Application
Pro	O
allows	O
teams	O
to	O
create	O
a	O
secure	O
site	O
on	O
a	O
sync.in	B-Application
sub-domain	O
with	O
users	O
for	O
everyone	O
in	O
the	O
team	O
.	O
</s>
<s>
An	O
Adobe	O
Air-based	O
desktop	O
client	O
is	O
available	O
for	O
Windows	O
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
and	O
Linux	B-Application
and	O
has	O
enhanced	O
features	O
for	O
Pro	O
users	O
.	O
</s>
