Dear Sir,
I am experienced Android developer and have an excellent solution for you!
I can deliver you an app, based on professional web-browser (Zirco) which opens your website at starting. Navigation(back, forward) warning at exit and about window included.
I can deliver you today and start immediately. Need only the url of homepage for giving you a free demo.
I am looking forward to work with you!
With best regards,
Sargis