Getting Hard Reject Every Time :(

[uranussolutions]

Hello,
Can anyone give some feedback on the following item why it has got hard rejected?
Your feedback will help me improve my Application. I am really getting tired of rejection.

play.google.com

Invoice Managment System - I – Apps on Google Play

Create Customized limit less invoice with category / product / customer and cashier. Save your invoice anytime and resume it when you want to continue. Print your invoice using blutooth printer. Role Based system : Admin / Cashier All data securely stored on your server using php services. Unlimited Stock & Bill Report's. Our key Features Dashboard with total bill / Total Purchase / Today's and Total Registered Customer Save invoice in between and resume it whenever you want. Print invoice us...

Free

Thanks.