Nice way to get mags. For example, I buy frequently Computer Music there and you don’t need to subscribe to the mag.
It is cheap as ~4$ for one issue. I can read the mag on Windows, Android and Amazon Fire Tablet.
If you have trouble in Windows that the pages are black or not displaying, you can “Reset” the app in Windows “Apps and Features”. Select Pocketmags and “Advanced Options” and press “Reset”. This will set the app to default without logging you out or anything else.
I can recommend Computer Music because of the software and good tutorials you get there. The software can be downloaded after you register over at