How to block download web and app

[Tien Ngo Thanh]

I want block download file on web and app when user use outsite company . please guest help me solution .I try use conditional access but it only block download web only

[#2]

What app are you talking about?
Is this mobile or W10?

For mobile, you can setup app protection policy which disables the ability to save files locally (but this will be independent of the location)

For Windows 10, can you block Modern Authentication apps in certain conditions. But this will not work very well with locations.

I highly recommend to manage the device and not base on the location

[#3]

@Tien Ngo Thanh 

For OWA and sharepoint, you can stop the download via conditional access policies/sharepoint admin center

But catch is it will block based on device status. If you want you can give exception based on named location, if you are sure about your companies external IP address