<s>
is	O
a	O
free-to-play	O
mobile	B-Application
game	I-Application
developed	O
by	O
Hit-Point	O
Co.	O
,	O
Ltd	O
that	O
operates	O
in	O
Nagoya	O
,	O
Kyoto	O
,	O
released	O
on	O
24	O
November	O
2017	O
for	O
iOS	B-Application
and	O
Android	B-Application
devices	O
.	O
</s>
<s>
Similar	O
to	O
the	O
mobile	B-Application
game	I-Application
Neko	B-Application
Atsume	I-Application
developed	O
by	O
the	O
same	O
company	O
,	O
Travel	B-Application
Frog	I-Application
is	O
a	O
low-pressure	O
,	O
non-competitive	O
game	O
with	O
carefully	O
designed	O
graphics	O
.	O
</s>
<s>
Travel	B-Application
Frog	I-Application
has	O
remained	O
No.1	O
in	O
the	O
free	O
game	O
category	O
on	O
the	O
Chinese	O
app	B-Application
store	I-Application
for	O
more	O
than	O
two	O
weeks	O
in	O
January	O
,	O
2018	O
,	O
by	O
which	O
time	O
the	O
Chinese	O
translation	O
was	O
not	O
even	O
available	O
yet	O
and	O
the	O
game	O
was	O
presented	O
in	O
Japanese	O
.	O
</s>
