Since this is my first time developing iOS application for client, so I don't know how much should I charge from them. And how long should I give them a free maintenance? (Salary Rate as iOS App Programmer in Cambodia 500$-$1000+) Here's a features of the app:
+Client site application
-Support all iOS Devices
-Show all products of the shop
-Show location with map direction between current location and each store
-User Login and Registration for online ordering + SMS Verification ($0.013/sms)
Select the topping of each product (drinking), size, sugar level....
Add to Cart
After done, admin will receive real time message that new order has been added.
+Admin site application(iOS)
-Add,edit,delete information of everything in the app.
-Receive real time notification and message from client for every new ordering
-Pushing notification to users
And they give me 1.5 month for developing and 0.5 months for testing.
I hope I can get any advice from you guys. I do appreciate your answers.