This app is _NOT_ QField for QGIS (which is freely available, Open Source and available at http://qfield.opengis.ch/get). This is a donation to show QField some love and get some good Karma.
QField is an Open Source project led by OPENGIS.ch LLC, the source code, much more information and further (preferred) possibilities to donate to the project can be found at http://qfield.opengis.ch.
If you need a specific feature, contact us at http://www.opengis.ch/contact/ to sponsor its development.
For bug reports contact us or better file an issue at http://qfield.opengis.ch/issues