<s>
LinguaLeo	B-Application
is	O
an	O
English	O
language	O
learning	O
platform	O
for	O
Russian	O
,	O
Turkish	O
,	O
and	O
Brazilian	O
Portuguese	O
speakers	O
.	O
</s>
<s>
LinguaLeo	B-Application
is	O
available	O
on	O
the	O
web	B-Application
,	O
as	O
Android	B-Application
,	O
iOS	B-Application
,	O
Windows	B-Protocol
Phone	I-Protocol
apps	O
,	O
and	O
as	O
a	O
browser	B-Protocol
extension	I-Protocol
.	O
</s>
<s>
To	O
additionally	O
motivate	O
the	O
users	O
,	O
LinguaLeo	B-Application
adds	O
gamification	O
mechanics	O
through	O
interaction	O
with	O
the	O
app	O
's	O
mascot	O
Leo	O
the	O
Lion	O
.	O
</s>
<s>
LinguaLeo	B-Application
is	O
available	O
as	O
an	O
Android	B-Application
,	O
iOS	B-Application
,	O
Windows	B-Protocol
Phone	I-Protocol
,	O
and	O
web	B-Application
applications	I-Application
,	O
and	O
a	O
browser	B-Protocol
extension	I-Protocol
.	O
</s>
<s>
LinguaLeo	B-Application
was	O
launched	O
as	O
a	O
web	B-Application
application	I-Application
in	O
March	O
2010	O
by	O
Russian	O
entrepreneur	O
Aynur	O
Abdulnasurov	O
and	O
his	O
four-person	O
development	O
team	O
.	O
</s>
<s>
From	O
May	O
to	O
November	O
2021	O
,	O
LinguaLeo	B-Application
userbase	O
grew	O
from	O
90,000	O
to	O
500,000	O
users	O
.	O
</s>
<s>
By	O
late	O
201	O
,	O
LinguaLeo	B-Application
reached	O
the	O
breakeven	O
point	O
.	O
</s>
<s>
In	O
2012	O
,	O
LinguaLeo	B-Application
released	O
its	O
iOS	B-Application
,	O
Android	B-Application
,	O
and	O
Windows	B-Protocol
Phone	I-Protocol
apps	O
and	O
reached	O
1	O
,	O
5	O
mil	O
users	O
.	O
</s>
<s>
The	O
Next	O
Web	B-Application
named	O
LinguaLeo	B-Application
the	O
best	O
Russian	O
startup	O
of	O
2013	O
,	O
and	O
Microsoft	O
named	O
it	O
the	O
best	O
Windows	B-Protocol
Phone	I-Protocol
app	O
of	O
2014	O
.	O
</s>
