body: This question is related to this one [Copyrights of material that would be used for both commercial and non-commercially](https://law.stackexchange.com/questions/38824/copyrights-of-material-that-would-be-used-for-both-commercial-and-non-commercial).
  
  
  I am developing mobile app that contains ads and premium paid option. In short, it is a commercial app. I want to give the ability to my user to download and listen to materials that was licensed as non-commercial use. 
  
  
  My question is:
  Is giving the ability to the user to download those materials from their original source via the app and listen to them via the app violate the non-commercial use condition? I mean I will not include them by default and will not advertise that the app contains those material when downloading/buying it.
  
  
  If it was OK, does hosting the files on my server change the answer? (Keeping in mind that I will put all information about the original materials and to who it belongs and the original link)
  
  
  Based on the answer to my previous question ([Copyrights of material that would be used for both commercial and non-commercially](https://law.stackexchange.com/questions/38824/copyrights-of-material-that-would-be-used-for-both-commercial-and-non-commercial)), I suppose that this question will get the same answer. However, my concern is that why it is OK, for example, for commercial web-browser to be used to navigate, download and listen to such non-commercial materials but it is not allowed for the app I am developing to do the basically the same. The materials are not included by default and the app does a lot of other things that is not related to those material. However, downloading and listing to those materials is optional and up to the user request. 
  
  
  I just want to be clear that I am not trying to avoid buying a commercial-license but I found no way to get in touch the owner/owners. Furthermore, there are tons of app and websites that are redistribution those material freely and putting ads or charging the user for the traffic. The owner/owners seem not interested in suing anyone but in the same time did not clearly stated that the materials are for Public Domain and I want to stay in the safe side.
  
  
  
title: Enable downloading non-commercial use material from a commercial app