Thanks for the info, but it is not the answer to my question.
My question was not how to switch between a front and a back camera.
My question is:
How do I cancel the "Use Always" camera App setting (in iAuditor) so that I can choose a different Camera App to take photos inside iAuditor?
A fuller explanation of my problem follows:-
background process which led to my question:
1 I wished to add a photo to a report.
2 I clicked on the "Media" .
3 I clicked "Take Photo"
4 This brought up on screen the camera apps installed
5 I clicked on one of the camera Apps installed on my tablet.
6 I clicked on "Always" use this camera.
Now when I wish to take another photo in another report (or elsewhere in the same report) the camera automatically defaults to the camera App that I selected above. This is as expected.
But
If I want to use a different Camera App (= software, not a different physical camera) there is no option screen or setting to allow me to remove the "Always" setting or override it
I cannot access the options pop-up screen used in (4-6) above.
I cannot find any setting inside iAuditor to change the camera app or remove the default camera setting.
If I delete and reinstall iAuditor the app continues to default to the camera chosen before I deleted the app!