With this App you have a Clapperboard always at your fingertips!
There are a whole bunch of features and everything fully customizable:
- capable of portrait and landscape mode
- countdown
- scene shot & take (swipe functionality!)
- title
- date and time (custom date according to this paatern: https://developer.android.com/reference/java/text/SimpleDateFormat.html)
- MOS Int./Ext. & Day/Night/Dawn
- automation (take upcounting)
- save/load of settings/petitions
- RGB/ s/w video signal
- clap/1kHz audio signal
- extra information field (FPS Lens LUT)
And then just "clap"!

//The development was discontinued due technical issues and time management although i like you to keep enjoying this app and may even donate. The app is compatible with most of the devices and in its final state contains only a few minor bugs (i didn't even noticed them self).//

Feedback would be great and will be considered by development!
If you like the app you could support the development wtih an small donation via in-app-payment or via PayPal http://tinyurl.com/clapb !

Bigger displays and faster processors are recommended!