How to stop a test

Go to My Tests and clicktap the test.

Then click the pause button on the right side.

Then tap the PAUSE button on the right side.

How to delete a test

Once a test is stopped (per the instructions above), the pause button is replaced by a delete button.

Click the delete button to delete the test.

Tap the DELETE button to delete the test.

How to delete a photo

Go to My Tests and look in the top left of your screen for a + New Test button.

That button will bring up a screen showing you any photos you've uploaded. Select the last box which says "Delete Photo(s)."