The PIEL Survey App can be accessed using most standard voiceover gestures on iDevices. The settings for voiceover can be found at: Settings > General > Accessibility > Voiceover
When a survey is due, the alert will sound followed by an announcement of time and date and that a notification has been received.
Do not keep headphones plugged into the device after a survey run has finished as it will prevent the next alert sound being heard externally.
If a survey is opened before the alert sound has finished, the alert sound may run over the top of voiceover when the first question is presented. However as it often takes a few seconds to locate a device and open the survey this is usually not a problem.
Using Zoom Functions
If necessary, you can use the zoom (enlargement) functions of iOS.
This setting can be found at: Settings > General > Accessibility > Zoom