<s>
AdAway	B-Application
is	O
a	O
free	B-License
and	I-License
open-source	I-License
ad-blocking	O
application	O
for	O
the	O
Android	B-Application
mobile	I-Application
operating	O
system	O
.	O
</s>
<s>
After	O
its	O
removal	O
,	O
AdAway	B-Application
used	O
the	O
app	O
store	O
F-Droid	B-Application
to	O
serve	O
downloads	O
.	O
</s>
<s>
AdAway	B-Application
blocks	O
ads	O
using	O
hosts	B-Protocol
files	I-Protocol
from	O
various	O
locations	O
and	O
combines	O
them	O
automatically	O
.	O
</s>
<s>
The	O
user	O
is	O
able	O
to	O
whitelist	O
or	O
blacklist	O
additional	O
domains	O
,	O
or	O
add	O
a	O
new	O
hosts	B-Protocol
file	I-Protocol
altogether	O
.	O
</s>
<s>
There	O
is	O
an	O
option	O
to	O
log	O
DNS	B-Protocol
requests	O
to	O
help	O
whitelisting	O
or	O
blacklisting	O
.	O
</s>
<s>
AdAway	B-Application
requires	O
in	O
the	O
actual	O
version	O
5.10.0	O
either	O
root	B-Application
access	I-Application
(	O
because	O
the	O
hosts	B-Protocol
file	I-Protocol
is	O
in	O
the	O
system	O
partition	O
)	O
or	O
the	O
use	O
of	O
DNS	B-Protocol
,	O
which	O
is	O
provided	O
by	O
AdAway	B-Application
itself	O
.	O
</s>
