Write some Software

I need a inventory management system where I can manage records of sales of our different product caregories aswell as the inventory. The software needs to be installed on a few computers(and operated at the same time without any problems) and needs to be monitored through IOS or Android. The same products must have different prices depending on if we sell them to wholesale or retail customers. The software must be able to print reports, where I can see some charts related to statistics. Our business mainly deals with electronics.