Startup Idea : Life easy with Amanda

Amanda is mobile apps as an marketplace only for certain area. Not local even smaller. Main problem is on my country (Indonesia) have a lot middle-class apartment/stack house/rental room area that the occupants (user) still need to buy things like (top up water gallon, rice, top up cylinder gas, top up electricity, top up phone credit, foods, breakfast, laundry services, etc.) on the nearest/around. Few shop / service already provide delivery services to each room, but it still using by phone call/sms. Actually it's my problem as well, we need to go to the shop on below/ground floor apartment to buy things like above. Wasting time and for new occupant will a bit confused to choose shop/services that they want to use. Especially for busy people like employer / enterpreneur, its a problem. With this app we make life more easy, user just touch their phone and see best shop / services by rating. They can see eta for delivery (in minutes)& able to choose delivery option, they have some payment option. The apps will be as simple as possible. Apps is a online shop based on around area.