World Community Grid - View Thread - Andorid Integrate APK into my app

No... What you can do on any device only is signing in to WCG and downloading the program for each project...
see:
https://www.worldcommunitygrid.org/help/viewSearch.do?searchString=source
for the reason.

1.The code has to remain in the control of the World Community Grid support team. Even the slightest change in the code, including using a different compiler, could render the research results useless.
2.In addition, the license agreement that we have with the researchers for their code stipulate that only the World Community Grid support team can touch the source code.

Well, you can integrate the BOINC app into your app. The source code is always available on Github , you know. dancing

Just for the record, using other's devices' resources but not letting other's know is not only immoral but could also be a crime. And if you do so, Google Play Store's vetting protocol will surely not letting you pass. hugs

BOINC does not only use the device's cpus but also read and write FREQUENTLY to the phone's flash memory, this could lead to wear of the phone's flash chip and quickly shorten device's life span, and the heat produced by BOINC could affect the device's battery in many ways. nerd

You can, however, introduce a button/checkbox on the app's interface, and ask the user to select whether to run volunteer computation or not, and you shall have a full disclosure on the possible side-effects that maybe introduced by this to the user, or maybe the user will sue you for not noticing them the possible risk to this. biggrin