<s>
Electrosmart	B-Application
is	O
an	O
Android	B-Application
application	I-Application
which	O
measures	O
the	O
radio	O
frequency	O
electromagnetic	O
waves	O
emitting	O
from	O
various	O
sources	O
like	O
mobile	O
phones	O
(	O
cellular	O
networks	O
i.e.	O
,	O
2G	O
,	O
3G	B-Architecture
,	O
4G	B-Architecture
,	O
5G	O
)	O
,	O
WiFi	O
access	O
points	O
,	O
Bluetooth	B-Protocol
devices	O
,	O
etc	O
.	O
</s>
<s>
Arnaud	O
Legout	O
,	O
a	O
research	O
scientist	O
in	O
INRIA	O
at	O
French	O
Institute	O
for	O
Research	O
in	O
Computer	O
Science	O
and	O
Automation	O
launched	O
the	O
Free	O
EMF	O
Detector	O
,	O
EMF	O
Meter	O
-	O
ElectroSmart	B-Application
app	O
on	O
August	O
23	O
,	O
2016	O
to	O
the	O
android	B-Application
users	O
via	O
Google	B-Application
Play	I-Application
.	O
</s>
<s>
At	O
present	O
,	O
app	O
is	O
downloaded	O
more	O
than	O
1,000,000	O
times	O
in	O
150	O
countries	O
and	O
established	O
a	O
rating	O
of	O
4.5	O
out	O
of	O
5	O
on	O
Google	B-Application
Play	I-Application
.	O
</s>
