The app unfortunately never got updated to the latest SDK (I'm not an android developer by trade) and it's missing the current pixel fx parameters.
For the saving, it *should* work but if you are having trouble with color saving, remember that :
- the color profile must be stored first (with a button in the app)
- color profiles are stored in the override file (along with other general parameters) : if the parameters that don't stick are color related or generic parameters, make sure you save the override file and not the config file. General parameters are the ones from the first tab of the app
Finally, could you describe the exact conditions under which you're having the app crashing ?
PS : Dmitry Schtock made an app (unity, IIRC) which can configure all my boards, for IOS and Android. I haven't got a chance to try it (busy bee) but it's definitely worth a try