Android: Officially, if you want the new Google Assistant, you need to buy a Pixel phone. Unofficially, it's already been enabled on any device running Nougat. Now, the Android N-ify Xposed module can even bring it to older Marshmallow devices.

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.

Windows/Mac/Android (root): Apps like Pushbullet allow you to move stuff like links and text from one device to another, but they always require action on the original device first. Handover, an Xposed module, allows you to do the same without touching your phone.

Android (root, 5.0+): Unfortunately, the Android N preview is only available for a few devices. However, you can try out a few of the newest features on Android Lollipop and up with this Xposed module.

Android (root): The awesome Xposed framework, which allows you to roll your own customised version of Android, has now been updated to work with Android Marshmallow.

Android (rooted with Xposed): Some Android apps, like Gmail, show that you have multiple unread notifications -- but they won't tell you how many. Notification Count is an Xposed module for rooted phones that adds a number badge to all your notifications.

Android (rooted): Your Android phone launches a number of applications and services in the background when you start it up. You can keep unwieldy battery and performance hogs at bay with BootManager for Xposed.