<s>
MIT	B-Application
App	I-Application
Inventor	I-Application
is	O
a	O
web	O
application	O
integrated	B-Application
development	I-Application
environment	I-Application
originally	O
provided	O
by	O
Google	B-Application
,	O
and	O
now	O
maintained	O
by	O
the	O
Massachusetts	O
Institute	O
of	O
Technology	O
(	O
MIT	O
)	O
.	O
</s>
<s>
It	O
allows	O
newcomers	O
to	O
computer	B-General_Concept
programming	I-General_Concept
to	O
create	O
application	B-Application
software	I-Application
(	O
apps	O
)	O
for	O
two	O
operating	O
systems	O
(	O
OS	O
)	O
:	O
Android	B-Application
and	O
iOS	B-Application
,	O
which	O
,	O
,	O
is	O
in	O
final	O
beta	O
testing	O
.	O
</s>
<s>
It	O
is	O
free	O
and	O
open-source	O
software	O
released	O
under	O
dual	B-License
licensing	I-License
:	O
a	O
Creative	O
Commons	O
Attribution	O
ShareAlike	O
3.0	O
Unported	O
license	O
and	O
an	O
Apache	B-Application
License	I-Application
2.0	I-Application
for	O
the	O
source	O
code	O
.	O
</s>
<s>
It	O
uses	O
a	O
graphical	O
user	O
interface	O
(	O
GUI	O
)	O
very	O
similar	O
to	O
the	O
programming	O
languages	O
Scratch	B-Language
(	O
programming	O
language	O
)	O
and	O
StarLogo	B-Language
,	O
which	O
allows	O
users	O
to	O
drag	O
and	O
drop	O
visual	O
objects	O
to	O
create	O
an	O
application	O
that	O
can	O
be	O
tested	O
on	O
Android	B-Application
and	O
iOS	B-Application
devices	O
and	O
built	O
to	O
run	O
as	O
an	O
Android	B-Application
app	O
.	O
</s>
<s>
In	O
creating	O
App	B-Application
Inventor	I-Application
,	O
Google	B-Application
drew	O
upon	O
significant	O
prior	O
research	O
in	O
educational	O
computing	O
,	O
and	O
work	O
done	O
within	O
Google	B-Application
on	O
online	O
development	O
environments	O
.	O
</s>
<s>
App	B-Application
Inventor	I-Application
and	O
the	O
other	O
projects	O
are	O
based	O
on	O
and	O
informed	O
by	O
constructionist	O
learning	O
theories	O
,	O
which	O
emphasize	O
that	O
programming	O
can	O
be	O
a	O
vehicle	O
for	O
engaging	O
powerful	O
ideas	O
through	O
active	O
learning	O
.	O
</s>
<s>
As	O
such	O
,	O
it	O
is	O
part	O
of	O
an	O
ongoing	O
movement	O
in	O
computers	O
and	O
education	O
that	O
began	O
with	O
the	O
work	O
of	O
Seymour	O
Papert	O
and	O
the	O
MIT	O
Logo	B-Device
Group	O
in	O
the	O
1960s	O
,	O
and	O
has	O
also	O
manifested	O
itself	O
with	O
Mitchel	O
Resnick	O
's	O
work	O
on	O
Lego	B-Application
Mindstorms	I-Application
and	O
StarLogo	B-Language
.	O
</s>
<s>
App	B-Application
Inventor	I-Application
also	O
supports	O
the	O
use	O
of	O
cloud	O
data	O
via	O
its	O
CloudDB	O
component	O
.	O
</s>
<s>
The	O
App	B-Application
Inventor	I-Application
team	O
was	O
led	O
by	O
Hal	O
Abelson	O
and	O
Mark	O
Friedman	O
.	O
</s>
<s>
In	O
the	O
second	O
half	O
of	O
2011	O
,	O
Google	B-Application
released	O
the	O
source	O
code	O
,	O
terminated	O
its	O
server	O
,	O
and	O
provided	O
funding	O
to	O
create	O
The	O
MIT	O
Center	O
for	O
Mobile	O
Learning	O
,	O
led	O
by	O
App	B-Application
Inventor	I-Application
creator	O
Hal	O
Abelson	O
and	O
fellow	O
MIT	O
professors	O
Eric	O
Klopfer	O
and	O
Mitchel	O
Resnick	O
.	O
</s>
<s>
On	O
December	O
6	O
,	O
2013	O
(	O
the	O
start	O
of	O
the	O
Hour	O
of	O
Code	O
)	O
,	O
MIT	O
released	O
App	B-Application
Inventor	I-Application
2	O
,	O
renaming	O
the	O
original	O
version	O
"	O
App	B-Application
Inventor	I-Application
Classic	O
"	O
Major	O
differences	O
are	O
:	O
</s>
<s>
Professor	O
Eric	O
Klopfer	O
and	O
Daniel	O
Wendel	O
of	O
the	O
Scheller	O
Program	O
supported	O
the	O
distribution	O
of	O
Open	O
Blocks	O
under	O
an	O
MIT	B-License
License	I-License
.	O
</s>
<s>
Open	O
Blocks	O
visual	O
programming	O
is	O
closely	O
related	O
to	O
StarLogo	B-Language
TNG	I-Language
,	O
a	O
project	O
of	O
STEP	O
,	O
and	O
Scratch	B-Language
,	O
a	O
project	O
of	O
the	O
MIT	O
Media	O
Lab	O
's	O
Lifelong	O
Kindergarten	O
Group	O
led	O
by	O
Mitchel	O
Resnick	O
.	O
</s>
<s>
App	B-Application
Inventor	I-Application
2	O
replaced	O
Open	O
Blocks	O
with	O
Blockly	B-Language
,	O
a	O
blocks	O
editor	O
that	O
runs	O
within	O
a	O
web	B-Application
browser	I-Application
.	O
</s>
<s>
The	O
MIT	B-Application
AI2	I-Application
Companion	O
app	O
enables	O
real-time	O
debugging	O
on	O
connected	O
devices	O
via	O
Wi-Fi	O
,	O
or	O
Universal	O
Serial	O
Bus	O
(	O
USB	B-Protocol
)	O
.	O
</s>
<s>
In	O
addition	O
to	O
this	O
the	O
user	O
may	O
use	O
an	O
"	O
on	O
computer	O
"	O
emulator	O
available	O
for	O
Windows	B-Application
,	O
MacOS	B-Application
,	O
and	O
Linux	B-Application
.	O
</s>
<s>
In	O
June	O
2018	O
,	O
a	O
baked	O
version	O
of	O
App	B-Application
Inventor	I-Application
2	O
called	O
Kodular	O
was	O
launched	O
.	O
</s>
<s>
It	O
is	O
promoted	O
as	O
an	O
'	O
improved	O
 '	O
and	O
more	O
modern	O
version	O
of	O
App	B-Application
Inventor	I-Application
2	O
.	O
</s>
