Grocery App Development:
Build a Grocery Store App With AI
Describe your store and Fastshot builds an iOS and Android grocery app with a product catalog, cart, pickup and delivery slots, order status updates and shopping lists. Your products and stock are kept in your own database.
How do I build a grocery app?
Describe your store to Fastshot, approve the plan, and in about 5 to 7 minutes you have a grocery app with categories, product search, a cart, pickup or delivery slots and order tracking. You add your own products and prices through an admin screen inside the app. Customers get a push notification each time an order changes status.
Last updated: November 4, 2026
Who Builds a Grocery App, and What It Has to Do
Corner shops, neighborhood supermarkets, co-ops, farm box sellers and specialty food stores build grocery apps. They are not trying to rebuild a national chain. They want their own regulars to order from a phone instead of calling the shop, and to stop paying a marketplace for orders that came from their own customers.
A grocery basket has a shape that most shopping apps do not handle well. Orders have many cheap lines, so the cart has to be fast to edit. Customers buy the same twenty things every week, so reorder matters more than discovery. Stock runs out during the day, so a product must be able to go out of stock without anyone editing code. And someone has to pick the order, so the shop needs a queue.
Fastshot builds both sides in one app. Customers see a catalog, cart and order history. Staff accounts see an admin area where they edit products and prices, mark items out of stock and move orders from received to packed to ready. Database rules keep the staff screens closed to everyone else.
The product data is yours. You enter items, prices and photos in the admin screens, or ask the AI to add a product import from a spreadsheet export. The app lists exactly what your store sells, at the prices you set.
The Screens a Grocery App Needs
The flow runs from shelf to doorstep, one screen at a time.
Home
Promotions at the top, a grid of aisle categories (produce, dairy, bakery, frozen), and a "buy again" row built from the customer's last orders.
Product list and search
A grid with photo, name, unit size, price and an add button that turns into a quantity stepper. Search finds items by name, and a filter hides anything out of stock.
Product detail
Larger photo, price per unit, description and allergens, and a substitution switch: "replace with something similar if this is out".
Cart
Line items with steppers, the running total, a promo code field and a note to the shopper such as "ripe avocados, please".
Checkout
Pick pickup or delivery, choose a time slot from the ones with room left, confirm the address, and place the order.
Order tracking
A timeline from received to packed to out for delivery or ready for pickup. Each step change can also arrive as a push notification.
Shopping lists
Named lists such as "Weekly basics". A barcode scan adds the matching product from your catalog, and one tap moves a whole list to the cart.
Staff admin
Edit products and stock, set delivery slot capacity, and work the order queue. Only accounts with the staff role can open it.
The Supabase Tables Behind a Grocery App
Money is stored as whole cents and stock as whole units, which keeps totals exact.
| Table | Key columns | What it stores |
|---|---|---|
| categories | name, sort_order, icon_url | The aisles shown on Home |
| products | category_id, name, sku, barcode, unit_label, price_cents, sale_price_cents, stock_qty, image_url, is_active | Everything you sell, with the barcode used by list scanning |
| delivery_slots | starts_at, ends_at, kind (pickup or delivery), capacity, booked_count | Time windows customers can choose and how full each one is |
| addresses | user_id, label, line1, city, postcode, lat, lng, instructions | Saved delivery addresses and gate notes |
| carts and cart_items | user_id; cart_id, product_id, qty, note | The basket a customer is building |
| orders | user_id, status, fulfilment, slot_id, total_cents, payment_method, placed_at | One row per placed order and its current stage |
| order_items | order_id, product_id, qty, unit_price_cents | A price snapshot so old orders keep their original totals |
| shopping_lists and list_items | user_id, name; list_id, product_id, qty | Saved lists used for reordering |
| promotions | code, percent_off, min_spend_cents, ends_at | Promo codes entered in the cart |
A Ready-to-Paste Prompt for a Grocery App
Swap in your shop name, aisles and delivery area.
Build a grocery ordering app for Green Basket Market for iOS and Android. Fresh look: leaf green, off-white background, rounded product cards.
Customer side:
- Home with a promo banner, aisle categories (produce, dairy, bakery, meat, frozen, pantry) and a Buy again row from past orders.
- Product grid with search, photo, unit size, price and a quantity stepper. Out-of-stock items are greyed out.
- Product detail with description, allergens and a "replace if unavailable" toggle.
- Cart with notes per item and a promo code field.
- Checkout: choose Pickup or Delivery, pick a slot that still has room, choose an address, place the order. Payment choices: pay at pickup or pay on delivery.
- Orders list with a status timeline: received, packed, out for delivery or ready for pickup, completed. A Reorder button on every past order.
- Shopping lists with a barcode scan that adds the matching product.
Staff side (role staff only): edit products, prices, photos and stock; set slot capacity; move orders through the statuses.
Backend: Supabase tables categories, products, delivery_slots, addresses, carts, cart_items, orders, order_items, shopping_lists, list_items, promotions. Sign in with email, Google or Apple. Money in cents.
Push notification to the customer every time their order status changes.How to Build a Grocery App Step by Step
Decide pickup, delivery or both
This choice shapes checkout. Pickup needs slots and a "ready" status. Delivery adds addresses, a delivery area and a driver-facing status. Put your choice in the first line of the prompt.
Approve the plan and check the order stages
Fastshot writes the plan with the customer screens and the staff screens. Look at the order status list and rename the stages to match how your shop actually works, for example "being picked".
Fill the catalog and run a test order
Connect Supabase when asked, sign in as the owner and add twenty products with photos in the staff admin. In the preview, add items, choose a slot, place an order, then switch to the staff side and move it to packed. Watch the timeline update.
Test the list scan on a phone
Open the app on your phone with the QR code and scan a barcode from a product on your shelf. The app should add the product whose barcode column matches. Fix any item whose barcode was typed wrong.
Switch on order status notifications
Turn on push notifications, install the build on your phone and place an order. Each status change sends a message to the customer on its own, and Message everyone covers weekly specials.
Publish and tell your regulars
Publish with your Apple Developer account ($99 a year) and Google Play account ($25 one-time). Put the store links on your receipts and shelf signs, since your existing customers will be the first users.
Grocery Apps Built With Fastshot
Published apps from shops and shoppers.
Apna Store
A grocery shopping app with categories, search, deals and a cart. See Apna Store in the gallery.
Green Harvest GmbH
A wholesale catalog with stock status where prices and ordering need a client login. See Green Harvest GmbH in the gallery.
Grocery
A list app with budget tracking, item categories and aisle order. See Grocery in the gallery.
Frequently Asked Questions
How do I create a grocery delivery app without a developer?
Write the customer flow and the staff flow in one prompt, approve Fastshot's plan, and test an order in the preview. The delivery part is mostly data: addresses, slots and an order status. Fastshot generates those tables and the screens that use them.
Can I create my own grocery app for free?
Describe your store to Fastshot and see the first version before you publish anything. Putting it in the stores costs the store fees: $99 a year for Apple and $25 one-time for Google Play.
How do customers pay?
Groceries are physical goods, and Apple's rule 3.1.3(e) says such purchases use methods other than in-app purchase. The first version records pay at pickup or pay on delivery in the orders table. Your payment_method column is where any other method you set up would be stored.
How do I keep stock accurate?
Every product has a stock_qty, and placing an order lowers it. Staff can correct it in the admin screen during the day, and products at zero show as out of stock. This works for a single shop. A chain with a separate inventory system would load its numbers into the same table.
Can I upload my whole product list at once?
Typing items one at a time suits a small shop. For hundreds of products, export your spreadsheet as CSV and ask the AI to add an import screen to the staff admin. Barcode, name, unit, price and stock are the columns it needs.
Can I stop customers from booking a full delivery slot?
Yes. Each slot has a capacity and a booked_count. The checkout screen lists only slots where booked_count is below capacity, and placing an order increases the count. Staff can raise capacity on busy days like Friday evening.
Can I create my own food delivery app too?
Yes. A restaurant app uses the same order queue and status timeline, with menus instead of aisles and a kitchen screen instead of a picking list. Start from the restaurant delivery app builder and reuse the slot logic from this page.
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Build Your Grocery App Today
Describe your store and get a grocery app for iOS and Android with a catalog, cart, delivery slots and order alerts.