<s>
fruux	B-Application
is	O
a	O
cross-platform	O
synchronization	O
service	O
operated	O
by	O
fruux	B-Application
,	O
the	O
company	O
behind	O
the	O
popular	O
open	O
source	O
project	O
SabreDAV	B-Application
.	O
</s>
<s>
fruux	B-Application
synchronization	O
uses	O
encrypted	O
SSL	B-Protocol
transfers	O
.	O
</s>
<s>
fruux	B-Application
supports	O
conflict	O
resolution	O
that	O
helps	O
users	O
when	O
data	O
was	O
changed	O
on	O
more	O
than	O
one	O
computer	O
to	O
choose	O
the	O
correct	O
dataset	O
.	O
</s>
<s>
fruux	B-Application
runs	O
entirely	O
on	O
Amazon	B-Application
Web	I-Application
Services	I-Application
infrastructure	O
.	O
</s>
<s>
The	O
company	O
uses	O
Amazon	B-General_Concept
Elastic	I-General_Concept
Load	I-General_Concept
Balancing	I-General_Concept
,	O
Amazon	B-General_Concept
Elastic	I-General_Concept
Compute	I-General_Concept
Cloud	I-General_Concept
(	O
Amazon	B-General_Concept
EC2	I-General_Concept
)	O
and	O
Amazon	O
Elastic	O
Block	O
Store	O
(	O
Amazon	O
EBS	O
)	O
to	O
run	O
its	O
nginx	B-Operating_System
Web	O
servers	O
.	O
</s>
<s>
Amazon	B-General_Concept
Simple	I-General_Concept
Storage	I-General_Concept
Service	I-General_Concept
(	O
Amazon	B-General_Concept
S3	I-General_Concept
)	O
is	O
fruux	B-Application
’s	O
choice	O
for	O
versioned	O
application	O
code	O
and	O
backup	O
storage	O
.	O
</s>
<s>
In	O
addition	O
,	O
fruux	B-Application
uses	O
Amazon	O
Relational	O
Database	O
Service	O
(	O
Amazon	O
RDS	O
)	O
to	O
manage	O
its	O
central	O
databases	O
and	O
Amazon	B-Application
Simple	I-Application
Email	I-Application
Service	I-Application
(	O
SES	O
)	O
as	O
a	O
highly	O
scalable	O
bulk	O
and	O
transactional	O
email-sending	O
service	O
.	O
</s>
<s>
The	O
service	O
is	O
similar	O
to	O
services	O
such	O
as	O
iCloud	B-Application
or	O
Plaxo	O
.	O
</s>
<s>
fruux	B-Application
supports	O
synchronization	O
of	O
mainly	O
contacts	O
,	O
calendar	O
events	O
and	O
to	O
do	O
items	O
between	O
a	O
wide	O
array	O
of	O
devices	O
and	O
services	O
.	O
</s>
<s>
In	O
2011	O
the	O
company	O
announced	O
the	O
launch	O
of	O
calendar	O
syncing	O
with	O
iOS	B-Application
and	O
other	O
CalDAV	B-Protocol
capable	O
devices	O
and	O
is	O
also	O
offering	O
contact	O
synchronization	O
with	O
both	O
iOS	B-Application
and	O
other	O
CardDAV	B-Protocol
capable	O
devices	O
.	O
</s>
<s>
fruux	B-Application
secured	O
a	O
six-figure	O
seed	O
round	O
in	O
March	O
2012	O
,	O
led	O
by	O
High-Tech	O
Gründerfonds	O
.	O
</s>
