<s>
Layar	B-General_Concept
was	O
a	O
Dutch	O
company	O
based	O
in	O
Amsterdam	O
,	O
founded	O
in	O
2009	O
by	O
Raimo	O
van	O
der	O
Klein	O
,	O
Claire	O
Boonstra	O
and	O
Maarten	O
Lens-FitzGerald	O
.	O
</s>
<s>
They	O
created	O
a	O
mobile	O
browser	O
app	O
called	O
Layar	B-General_Concept
.	O
</s>
<s>
The	O
browser	O
allowed	O
users	O
to	O
find	O
various	O
items	O
,	O
using	O
augmented	B-General_Concept
reality	I-General_Concept
technology	O
.	O
</s>
<s>
In	O
June	O
2014	O
,	O
Layar	B-General_Concept
was	O
acquired	O
by	O
the	O
UK	O
company	O
Blippar	B-Application
.	O
</s>
<s>
The	O
Layar	B-General_Concept
office	O
in	O
Amsterdam	O
was	O
closed	O
down	O
in	O
2016	O
.	O
</s>
<s>
In	O
January	O
2019	O
,	O
it	O
was	O
reported	O
that	O
co-founders	O
Klein	O
and	O
Lens-FitzGerald	O
had	O
expressed	O
interest	O
in	O
buying	O
back	O
the	O
intellectual	O
property	O
of	O
Layar	B-General_Concept
to	O
relaunch	O
it	O
as	O
an	O
independent	O
business	O
.	O
</s>
<s>
Layers	O
were	O
developed	O
and	O
maintained	O
by	O
third	O
parties	O
using	O
a	O
free	O
API	O
;	O
Layar	B-General_Concept
as	O
a	O
company	O
was	O
responsible	O
for	O
their	O
validation	O
in	O
the	O
publication	O
process	O
.	O
</s>
<s>
Third-party	O
projects	O
which	O
utilize	O
Layar	B-General_Concept
can	O
be	O
programs	O
which	O
require	O
QR	O
tags	O
,	O
or	O
locative	O
games	O
,	O
such	O
as	O
fAR-Play	B-General_Concept
.	O
</s>
<s>
As	O
of	O
July	O
2010	O
,	O
Layar	B-General_Concept
had	O
1,000	O
layers	O
.	O
</s>
<s>
As	O
of	O
September	O
2011	O
,	O
Layar	B-General_Concept
had	O
2,993	O
layers	O
.	O
</s>
