Grocery Wholesale Billing Software

I run a wholesale grocery outlet and I need a straightforward billing application that I can use both on my Android phone and on my Windows laptop. Every invoice must print a small slip (thermal or A4) showing the customer’s name, place, mobile number and the transport service chosen for dispatch... (Budget: ₹1500 - ₹12500 INR, Jobs: Android, Android App Development, Database Management, Mobile App Development, PHP, Software Architecture, Software Development, UI / User Interface)