Hi,
Thanks For Posting the Job, I am an experienced android Developer and if you'd have noticed I am silver certified here on FL as well.
This is relatively simple job,
>> I can assist you in Creating this App with changing background and user will be able to download from google play and apple store.
>> Background images will be shown to users and is quite easy to add in application.
>> Menu will be added "Contact us"
>> Looking forward to work with you.
I assure you a timely and quality delivery, you can verify the same from my reviews as well.
I am free and looking for work these days.
Hoping hear from you soon.
Thanks
Mandeep Dhalor