Hi
I'm not available for the next 2 weeks, but I'm sure you will get an App with everything you want!
PS.: The programming language you are looking for is not JS. It actually is Java (or Kotlin) ;)
Relevant Skills and Experience
Most of the things I am currently working on are for the Android Plattform and
although I'm only 17 years old, my School-Education and Hobby-Projects lead me to a little Android Profi :)
Proposed Milestones
$111 AUD - Android Development
Additional Services Offered
$50 AUD - Special Design
If you are interested to work with me, please send me exactly the formula(s) I should implement!