Make changes to 15 Android Apps, 14 are the Same. Must have Android Studio and Google Maps experience

Java and XML changes. Add features and fix other features. I am providing a list which I expect bidders to read, and populate the Cost Column. The total is your bid. If I feel that one or more items are priced too high, I may exclude them, lowering the bid, and put them out for bid separately. Bidders can ask for clarification of any item that isn't clear. Contract 2 (at the top and bottom of the list) should be done first with one Milestone Date, and Contract 3 should be done Second with another Milestone Date.