I can create sales pad apps for your business using android. And also i can create any type of business apps also. They will be helpful for your small business and home activities. I can make online access also. You can transfer and store your data in your databases using php web services. Here I use JSON for data transferring. I can create password protection for your app. and passwords are saved as encrypted passwords. And I create Interfaces to be attractive.then the app will be very much user friendly. And also the app will be fit on any type of screen and It will be work with any android OS version without any problem.