<s>
Meteor	B-Language
,	O
or	O
MeteorJS	B-Language
,	O
is	O
a	O
partly	O
proprietary	O
,	O
mostly	O
free	B-License
and	I-License
open-source	I-License
isomorphic	B-Language
JavaScript	I-Language
web	B-Application
framework	I-Application
written	O
using	O
Node.js	B-Language
.	O
</s>
<s>
Meteor	B-Language
allows	O
for	O
rapid	O
prototyping	O
and	O
produces	O
cross-platform	B-Operating_System
(	O
Android	B-Application
,	O
iOS	B-Application
,	O
Web	O
)	O
code	O
.	O
</s>
<s>
The	O
server-side	O
MongoDB	B-Application
program	O
is	O
the	O
only	O
proprietary	O
component	O
of	O
Meteor	B-Language
and	O
is	O
part	O
of	O
the	O
Meteor	B-Language
download	O
bundle	O
.	O
</s>
<s>
It	O
is	O
possible	O
to	O
use	O
Meteor	B-Language
without	O
using	O
the	O
server-side	O
MongoDB	B-Application
.	O
</s>
<s>
It	O
uses	O
the	O
Distributed	B-Protocol
Data	I-Protocol
Protocol	I-Protocol
and	O
a	O
publish	B-Operating_System
–	I-Operating_System
subscribe	I-Operating_System
pattern	I-Operating_System
to	O
automatically	O
propagate	O
data	O
changes	O
to	O
clients	O
without	O
requiring	O
the	O
developer	O
to	O
write	O
any	O
synchronization	O
code	O
.	O
</s>
<s>
On	O
the	O
client	O
,	O
Meteor	B-Language
can	O
be	O
used	O
with	O
any	O
popular	O
front-end	O
JS	O
framework	O
,	O
Vue	B-Language
,	O
React	O
,	O
Svelte	B-Language
,	O
Angular	O
,	O
or	O
Blaze	O
.	O
</s>
<s>
Meteor	B-Language
is	O
developed	O
by	O
Meteor	B-Language
Software	O
.	O
</s>
<s>
Meteor	B-Language
raised	O
an	O
additional	O
$20M	O
in	O
Series	O
B	O
funding	O
from	O
Matrix	O
Partners	O
,	O
Andreessen	O
Horowitz	O
and	O
Trinity	O
Ventures	O
.	O
</s>
<s>
It	O
intends	O
to	O
become	O
profitable	O
by	O
offering	O
Galaxy	O
,	O
an	O
enterprise-grade	O
hosting	O
environment	O
for	O
Meteor	B-Language
applications	O
.	O
</s>
<s>
Having	O
been	O
in	O
development	O
for	O
about	O
eight	O
months	O
,	O
Meteor	B-Language
was	O
initially	O
released	O
in	O
December	O
2011	O
under	O
Skybreak	O
.	O
</s>
<s>
By	O
April	O
2012	O
,	O
the	O
framework	O
was	O
renamed	O
Meteor	B-Language
and	O
officially	O
launched	O
.	O
</s>
<s>
During	O
the	O
next	O
few	O
months	O
,	O
and	O
with	O
the	O
help	O
of	O
large	O
investments	O
from	O
Andreessen	O
Horowitz	O
and	O
endorsements	O
from	O
high-profile	O
figures	O
in	O
the	O
startup	O
world	O
,	O
Meteor	B-Language
steadily	O
increased	O
its	O
user	O
base	O
.	O
</s>
<s>
Particularly	O
after	O
receiving	O
large	O
amounts	O
of	O
venture	O
capital	O
in	O
its	O
Series	O
B	O
funding	O
round	O
,	O
Meteor	B-Language
acquired	O
and	O
integrated	O
several	O
other	O
startups	O
into	O
its	O
core	O
product	O
.	O
</s>
<s>
Acquisitions	O
have	O
included	O
FathomDB	B-Language
,	O
a	O
cloud	O
database	O
startup	O
,	O
Galaxy	O
,	O
a	O
cloud	O
platform	O
for	O
operating	O
and	O
managing	O
Meteor	B-Language
applications	O
,	O
and	O
Kadira	O
,	O
a	O
performance	O
monitoring	O
solution	O
.	O
</s>
<s>
Meteor	B-Language
has	O
successfully	O
monetized	O
its	O
userbase	O
:	O
In	O
2016	O
,	O
Meteor	B-Language
beat	O
its	O
own	O
revenue	O
goals	O
by	O
30%	O
by	O
offering	O
web	O
hosting	O
for	O
Meteor	B-Language
apps	O
through	O
Galaxy	O
.	O
</s>
<s>
From	O
2016	O
the	O
Meteor	B-Language
Development	O
Group	O
(	O
the	O
open	O
source	O
organisation	O
powering	O
Meteor	B-Language
)	O
started	O
working	O
on	O
a	O
new	O
backend	O
layer	O
based	O
on	O
GraphQL	B-Language
to	O
gradually	O
replace	O
their	O
pub/sub	B-Operating_System
system	O
,	O
largely	O
isolated	O
in	O
the	O
whole	O
node.js	B-Language
ecosystem	O
:	O
the	O
Apollo	O
framework	O
.	O
</s>
<s>
In	O
October	O
2019	O
,	O
the	O
Meteor.js	B-Language
open	O
source	O
framework	O
and	O
Galaxy	O
Hosting	O
Products	O
were	O
purchased	O
by	O
Tiny	O
Capital	O
and	O
renamed	O
Meteor	B-Language
Software	O
.	O
</s>
<s>
Distributed	B-Protocol
Data	I-Protocol
Protocol	I-Protocol
(	O
or	O
DDP	O
)	O
is	O
a	O
client	B-Operating_System
–	I-Operating_System
server	I-Operating_System
protocol	O
for	O
querying	O
and	O
updating	O
a	O
server-side	O
database	O
and	O
for	O
synchronizing	O
such	O
updates	O
among	O
clients	O
.	O
</s>
<s>
It	O
uses	O
the	O
publish	B-Operating_System
–	I-Operating_System
subscribe	I-Operating_System
messaging	O
pattern	O
.	O
</s>
<s>
It	O
was	O
created	O
for	O
use	O
by	O
the	O
Meteor	B-Language
JavaScript	B-Language
framework	I-Language
.	O
</s>
