how to install unsigned android application on the device?

Question

Currently a team of developers is working on Android application and during the development process testers already have to test the current state and report issues.

So

Answer 1

Here is what I do for that, simple: Build in debug mode, no need to sign with a special key. Mail them the application by regular email to their computers. Then have them connect their USB cables (comes with the phone) and copy to sd card. Access the sd card from the within the phone using any available file browser, and they can install it from the SD card. Regards