The easiest way to transfer a VXM file to your mobiles is to download it wirelessly using the device itself. Any method will do: through a web link, as an email attachment, using a cloud storage app such as Dropbox, Google Drive or SkyDrive. Opening the downloaded file will copy it to the CTvox app’s dedicated storage, then launch the app to open the dataset.
Alternatively, VXM files can be transferred over a USB connection (for iOS, iTunes is required.) This approach can prove more effective when multiple VXM files need to be transferred. For more details, please consult the manual or online help.
A set of example datasets is available here (this is a link to a Dropbox shared folder).
The app's manual is available as a PDF for the iPad, iPhone/iPod and Android versions.