How to login with another username on moodle-mobile?

Hi,

in lack of a better suited feedback-channel I ask this this way.
(maybe somebody feels responsible to improve this part of moodle)

I'm a teacher and want to use moodle-mobile.
So I installed moodle-mobile on my smartphone connected to the moodle-server of our school and logged in as me as a trainer.

Now to check how my courses are presented to students I havwe a student-login myself.
But I haven't found any possability to login with my student-account. Whenever I start moodle-mobile i get logged in automatically. useful feature for a fast connection in all regular cases but if I want to login as a "test-student" do I really have to use another smartphone or is there a smarter way to do it.

best regards

Stefan