Android: XDA has released a few versions of its apps over the years, but the recent ones are the most useful yet. With XDA Labs you can browse the forums, download apps and peruse a library of Xposed modules. XDA Labs is an offshoot of the forum's other new official XDA app. In order to be compatible with the Play Store, the developers had to remove things like app downloads and Xposed modules. If you only care about browsing forum posts, the regular app should suffice for you. However, we all know that cool apps and sweet Xposed modules are XDA's speciality. You can find links for the regular app on the Google Play Store, and the XDA Labs apk you can sideload from the source links below.
XDA Labs [XDA]