Duvale Conveniência

The client

Duvale is a neighborhood convenience store with counter service that wanted to sell by delivery too, without depending on a third party app. A convenience store runs a fixed routine per shift: opening, stock checks, cleaning, closing. At Duvale that routine depended on paper and on someone remembering to follow up. Without being in the store, the manager had no way to know what was done, by whom and when. Internal notices got lost in chat groups, with no way to tell who had read them.

The challenge

The app would be used at the counter, on basic phones, under bright light and with unstable internet. The manager needed to change a checklist without calling a developer. An item answered no needed a justification, and an item that asks for proof needed a photo, without burning through the store's data plan. And each employee could only see their own work, never a coworker's runs or history.

What was built

The site presents the store, shows the catalog straight from the app and explains how to order: customers pick in the app, give name, phone and address without creating an account and pay at the door, in cash, Pix or card. For the staff, andré built an Android app with two areas, manager and employee. The manager builds the checklist in the app's editor, picks each item's type, drags to reorder, sets who runs it by role or by person and previews it before publishing. Employees see the day's checklists by shift, with a deadline and progress bar; the camera opens directly when an item needs a photo, and the image is shrunk before upload. Offline, answers wait in an on device queue with a visible notice and upload by themselves when the network returns. Separation between stores and between people is enforced in the database, by an access policy on every table.

What the system does

• Store website with a catalog updated straight from the app and a step by step on how to order.
• Ordering without sign up and payment only on delivery, with the total shown before confirming.
• Operations center with orders, catalog and dashboard in one place.
• Checklist editor inside the app, with yes or no, text, number, choice and photo items.
• Daily checklists split by shift, with a deadline and a progress bar.
• Mandatory justification when an item is answered no, with an alert for the manager.
• Works offline and syncs by itself when the connection returns.
• Manager dashboard with completed, pending and late runs, and who still owes work this shift.
• Internal notices by push notification, to the whole store, a role or specific people, with read and acknowledgment tracking.
• Export any period to CSV for Excel.

Frequently asked questions