Hello,
We are interested in developing this Salon management application.
We would like to do both online and offline versions of this app. The offline version would be similar to online version, the only difference would be, it can work without internet as well. As soon as the system is connected to internet, it will synch with the online version.
In the requirement, you have talked about Client mgmt, Appointment mgmt, inventory, staff mgmt, Payment mgmt and Coupons mgmt. We can develop all these modules for you. We can provide you the suggestions as well.
To proceed with this application, we would like to suggest you the below methodology:
1) First, we should prepare functional specification document of the app with Wireframe (Screens and flow).
2) Then we will design the Database.
3) Coding
4) Testing each module after completion
Please let us know, what is your opinion about the same.
Regards
ZEN