<s>
Spark	B-Application
Social	I-Application
or	O
Spark	O
was	O
a	O
matchmaking	O
mobile	B-Application
app	I-Application
from	O
DABSquared	O
released	O
in	O
March	O
2015	O
.	O
</s>
<s>
The	O
app	O
was	O
also	O
able	O
to	O
use	O
Bluetooth	B-Protocol
to	O
find	O
people	O
in	O
close	O
proximity	O
,	O
up	O
to	O
30	O
metres	O
away	O
,	O
even	O
when	O
no	O
Internet	O
connection	O
was	O
available	O
.	O
</s>
<s>
Spark	O
required	O
a	O
Facebook	B-Application
account	O
and	O
included	O
in-app	O
purchases	O
.	O
</s>
