[wjbr]

https://developer.android.com/ndk

Android NDK

The Android NDK is a toolset that lets you implement parts of your app in native code, using languages such as C and C++. For certain types of apps, this can help you reuse code libraries written in those languages.

[amelius]

Interesting. I was under the impression that all apps on Android would run inside a Java sandbox, but apparently this is not the case. However, now I'm wondering how safe it is to run apps that might contain native code.