learning

TED

learning

TED Conferences LLC 

Gratuit
 
Gratuit
 
Gratuit
 

Mobile Observatory

learning

Wolfgang Zima 

5.10 €
2.51 €
 

PhotoMath

learning

Microblink 

Gratuit
 

Lumosity

learning

Lumos Labs, Inc. 

Gratuit
 

Blinkist

learning

Blinks Labs GmbH 

Gratuit
 
Gratuit
 

Pocket Planets

learning

Bruno Oberdorfer 

0,99 €
 

Learn C++

learning

SoloLearn 

Gratuit
 
2,99 €
1,51 €
 
2,10 €
1,40 €
 
Gratuit
 
Gratuit
 
2,00 €
0,80 €