<s>
Wunderlist	B-Operating_System
is	O
a	O
discontinued	O
cloud-based	O
task	O
management	O
application	O
.	O
</s>
<s>
It	O
allowed	O
users	O
to	O
create	O
lists	O
to	O
manage	O
their	O
tasks	O
from	O
a	O
smartphone	O
,	O
tablet	O
,	O
computer	O
and	O
smartwatch	B-Application
.	O
</s>
<s>
Wunderlist	B-Operating_System
was	O
free	O
;	O
additional	O
collaboration	O
features	O
were	O
available	O
in	O
a	O
paid	O
version	O
known	O
as	O
Wunderlist	B-Operating_System
Pro	O
,	O
released	O
April	O
2013	O
.	O
</s>
<s>
Wunderlist	B-Operating_System
was	O
created	O
in	O
2011	O
by	O
Berlin-based	O
startup	O
6Wunderkinder	B-Operating_System
(	O
Engl	O
.	O
</s>
<s>
In	O
April	O
2017	O
,	O
Microsoft	O
announced	O
that	O
Wunderlist	B-Operating_System
would	O
eventually	O
be	O
discontinued	O
in	O
favor	O
of	O
Microsoft	B-Application
To	I-Application
Do	I-Application
,	O
a	O
new	O
multi-platform	O
app	O
developed	O
by	O
the	O
Wunderlist	B-Operating_System
team	O
that	O
has	O
direct	O
integration	O
with	O
the	O
company	O
's	O
Office	B-Operating_System
365	I-Operating_System
service	O
.	O
</s>
<s>
On	O
December	O
6	O
,	O
2019	O
,	O
Microsoft	O
announced	O
that	O
it	O
would	O
shut	O
down	O
Wunderlist	B-Operating_System
on	O
May	O
6	O
,	O
2020	O
.	O
</s>
<s>
After	O
this	O
date	O
,	O
the	O
application	O
would	O
no	O
longer	O
sync	O
but	O
users	O
could	O
still	O
import	O
their	O
content	O
into	O
Microsoft	B-Application
To	I-Application
Do	I-Application
.	O
</s>
<s>
In	O
2009	O
,	O
Wunderlist	B-Operating_System
's	O
CEO	O
Christian	O
Reber	O
called	O
on	O
the	O
social	O
network	O
platform	O
XING	O
for	O
business	O
partners	O
to	O
create	O
a	O
new	O
to-do	B-Application
app	O
.	O
</s>
<s>
Frank	O
Thelen	O
responded	O
and	O
together	O
Reber	O
and	O
Thelen	O
developed	O
first	O
concepts	O
for	O
Wunderlist	B-Operating_System
.	O
</s>
<s>
The	O
first	O
version	O
of	O
Wunderlist	B-Operating_System
was	O
launched	O
on	O
November	O
9	O
,	O
2010	O
.	O
</s>
<s>
Initially	O
,	O
the	O
program	O
was	O
created	O
for	O
desktop	O
PCs	O
and	O
platforms	O
such	O
as	O
Windows	O
,	O
Linux	O
and	O
Mac	B-Application
OS	I-Application
X	O
.	O
</s>
<s>
Subsequently	O
,	O
the	O
developers	O
released	O
a	O
version	O
prepared	O
for	O
the	O
iPad	O
with	O
the	O
name	O
Wunderlist	B-Operating_System
HD	O
.	O
</s>
<s>
Instead	O
they	O
wanted	O
to	O
focus	O
on	O
creating	O
a	O
new	O
version	O
of	O
Wunderlist	B-Operating_System
,	O
which	O
was	O
later	O
on	O
released	O
in	O
December	O
2012	O
under	O
the	O
name	O
Wunderlist	B-Operating_System
2	O
.	O
</s>
<s>
In	O
July	O
2014	O
,	O
a	O
new	O
major	O
update	O
was	O
released	O
under	O
the	O
name	O
of	O
Wunderlist	B-Operating_System
3	O
,	O
with	O
a	O
new	O
real-time	O
sync	O
architecture	O
.	O
</s>
<s>
Wunderlist	B-Operating_System
reached	O
10	O
million	O
users	O
in	O
December	O
2014	O
.	O
</s>
<s>
On	O
June	O
1	O
,	O
2015	O
,	O
it	O
was	O
announced	O
that	O
Microsoft	O
had	O
acquired	O
6Wunderkinder	B-Operating_System
,	O
makers	O
of	O
Wunderlist	B-Operating_System
,	O
for	O
between	O
US$100	O
million	O
and	O
US$200	O
million	O
.	O
</s>
<s>
Following	O
its	O
acquisition	O
of	O
the	O
app	O
,	O
Microsoft	O
announced	O
in	O
April	O
2017	O
a	O
preview	O
of	O
To-Do	B-Application
,	O
a	O
multi-platform	O
task	O
management	O
app	O
developed	O
by	O
the	O
Wunderlist	B-Operating_System
team	O
that	O
was	O
intended	O
to	O
eventually	O
replace	O
Wunderlist	B-Operating_System
and	O
incorporate	O
most	O
of	O
its	O
features	O
.	O
</s>
<s>
As	O
of	O
January	O
2019	O
,	O
To-Do	B-Application
had	O
not	O
yet	O
reached	O
feature	O
parity	O
with	O
Wunderlist	B-Operating_System
,	O
with	O
its	O
team	O
citing	O
that	O
the	O
service	O
had	O
to	O
be	O
completely	O
re-written	O
to	O
use	O
Microsoft	B-Application
Azure	I-Application
instead	O
of	O
Amazon	B-Application
Web	I-Application
Services	I-Application
.	O
</s>
<s>
Frustrated	O
by	O
the	O
perceived	O
lack	O
of	O
roadmap	O
,	O
in	O
September	O
2019	O
,	O
Reber	O
began	O
to	O
publicly	O
ask	O
Microsoft-related	O
accounts	O
on	O
Twitter	B-Application
whether	O
he	O
could	O
buy	O
Wunderlist	B-Operating_System
back	O
.	O
</s>
<s>
Shortly	O
afterward	O
,	O
however	O
,	O
Microsoft	O
unveiled	O
updates	O
to	O
To-Do	B-Application
that	O
make	O
it	O
more	O
closely	O
resemble	O
Wunderlist	B-Operating_System
.	O
</s>
<s>
In	O
December	O
2019	O
,	O
Microsoft	O
announced	O
that	O
it	O
would	O
fully	O
shut	O
down	O
Wunderlist	B-Operating_System
as	O
of	O
May	O
6	O
,	O
2020	O
.	O
</s>
<s>
In	O
its	O
initial	O
round	O
of	O
funding	O
,	O
100,000	O
euro	O
was	O
invested	O
in	O
6Wunderkinder	B-Operating_System
by	O
Frank	O
Thelen	O
and	O
others	O
.	O
</s>
<s>
In	O
May	O
2012	O
,	O
High-Tech	O
Gründerfonds	O
sold	O
off	O
its	O
stake	O
in	O
6Wunderkinder	B-Operating_System
to	O
Earlybird	O
Venture	O
Capital	O
.	O
</s>
<s>
In	O
2013	O
,	O
Wunderlist	B-Operating_System
for	O
Mac	O
was	O
named	O
App	O
of	O
the	O
Year	O
.	O
</s>
<s>
Wunderlist	B-Operating_System
was	O
selected	O
as	O
a	O
Google	O
Play	O
Top	O
Developer	O
in	O
2013	O
.	O
</s>
<s>
In	O
2014	O
,	O
Wunderlist	B-Operating_System
won	O
the	O
"	O
Golden	O
Mi	O
"	O
award	O
from	O
Xiaomi	O
,	O
and	O
also	O
named	O
as	O
one	O
of	O
its	O
Best	O
Apps	O
of	O
2014	O
was	O
given	O
a	O
"	O
Google	O
Play	O
Editor	O
's	O
Choice	O
"	O
award	O
,	O
and	O
was	O
named	O
in	O
Google	O
Play	O
's	O
Best	O
Apps	O
of	O
2014	O
as	O
well	O
as	O
Apple	O
's	O
Best	O
of	O
2014	O
.	O
</s>
