<s>
Tactical	B-Application
Nav	I-Application
(	O
stylized	O
as	O
Tactical	B-Application
NAV	I-Application
)	O
is	O
a	O
location-based	B-Application
tracking	O
app	O
designed	O
for	O
use	O
by	O
military	O
personnel	O
.	O
</s>
<s>
It	O
is	O
also	O
used	O
in	O
close	B-Application
combat	I-Application
and	O
close	O
air	O
support	O
operations	O
.	O
</s>
<s>
Information	O
gathered	O
by	O
the	O
app	O
can	O
be	O
sent	O
to	O
a	O
tactical	O
operations	O
center	O
,	O
where	O
a	O
decision	O
is	O
made	O
to	O
conduct	O
an	O
airstrike	B-Application
or	O
provide	O
medical	O
evacuation	O
to	O
wounded	O
troops	O
.	O
</s>
<s>
Waypoint	O
and	O
location	O
data	O
can	O
be	O
shared	O
via	O
Facebook	B-Application
,	O
text	O
and	O
email	O
.	O
</s>
<s>
The	O
app	O
allows	O
includes	O
features	O
designed	O
to	O
make	O
its	O
use	O
less	O
conspicuous	O
,	O
such	O
as	O
a	O
red-light	O
user	B-Application
interface	I-Application
which	O
conceals	O
light	O
from	O
the	O
phone	O
's	O
screen	O
at	O
night	O
.	O
</s>
<s>
Tactical	B-Application
NAV	I-Application
was	O
designed	O
by	O
U.S.	O
Army	O
Captain	O
Jonathan	O
J	O
.	O
Springer	O
,	O
a	O
former	O
Battalion	O
Fire	O
Support	O
Officer	O
in	O
the	O
101st	O
Airborne	O
Division	O
.	O
</s>
<s>
Springer	O
founded	O
Tactical	B-Application
NAV	I-Application
,	O
LLC	O
(	O
formerly	O
AppDaddy	O
)	O
in	O
2010	O
to	O
develop	O
mobile	O
applications	O
for	O
use	O
by	O
military	O
personnel	O
.	O
</s>
<s>
The	O
app	O
was	O
released	O
on	O
the	O
App	B-Application
Store	I-Application
on	O
February	O
14	O
,	O
2011	O
.	O
</s>
<s>
As	O
of	O
December	O
2021	O
,	O
the	O
app	O
is	O
available	O
on	O
both	O
iOS	B-Application
and	O
Android	B-Application
.	O
</s>
