Customer App
Fast category browsing and search across 50,000+ SKUs, smart lists and one-tap reorder of weekly baskets, delivery slot selection or express checkout, substitution preferences, and live order tracking from picking to doorstep.
On-demand Solutions
Grocery Delivery App Development
Instacart-style grocery delivery platforms with catalog management for 50,000+ SKUs, slot-based and express delivery, and dark-store-ready operations.
Grocery delivery is a different engineering problem from food delivery: catalogs run to tens of thousands of SKUs, items go out of stock mid-order, and customers expect both scheduled slots and 15-minute express delivery. Devlex Infotech builds grocery platforms that solve all three — Elasticsearch-powered catalog search, real-time inventory sync with substitution workflows, and slot management that balances picker capacity against demand.
We build grocery and quick-commerce platforms for supermarket chains, dark-store startups, and hyperlocal operators. A full build covers the customer app, a picker-and-packer app, a delivery driver app, and an admin dashboard handling categories, pricing, and promotions — and you can start with any one piece rather than all four.
4 appsCustomer, Picker, Driver, Admin
10-14 wksTypical First Release
From $25Scoped Feature Work
What We Build
Grocery Delivery App We Deliver
Picker & Packer App
Aisle-optimized picking routes, barcode scanning for item verification, weight-based item handling, instant substitution requests pushed to the customer, and order staging for handover — cutting per-order picking time by up to 35%.
Driver App
Batched multi-drop routes optimized by Google Maps, temperature-sensitive handling flags, contactless proof of delivery with photo capture, and earnings dashboards with shift scheduling.
Admin Dashboard
Catalog and pricing management with bulk CSV import, store and dark-store zone configuration, slot capacity planning, promotion and combo-offer engines, and refund workflows your ops team can run without engineering help.
Dispatcher Panel
Live view of orders by status — placed, picking, packed, out for delivery — with bottleneck alerts, manual driver reassignment, and demand heat maps that tell you where the next dark store should go.
Analytics & Integrations
Basket size, repeat-purchase, and slot-utilization analytics, plus integrations with ERP and inventory systems (SAP, Odoo), POS platforms, Stripe and Razorpay payments, and Twilio or WhatsApp for order notifications.
Key Features
Features That Set Your Platform Apart
- Real-time inventory sync with out-of-stock substitution flow
- Scheduled delivery slots plus 15-minute express delivery
- Barcode-scanning picker verification
- Weight-based pricing for fresh produce and meat
- Multiple payment options including wallets and cash on delivery
- Recurring baskets and subscription deliveries
- Dynamic delivery fees and minimum order rules by zone
- Ratings for products, delivery experience, and substitutions
- Multi-store and dark-store support under one brand
- Push, SMS, and WhatsApp notifications at every order stage
Who We Serve
Built For Every Player In The Ecosystem
From early-stage startups to established enterprises, we tailor solutions to your scale.
- Supermarket and hypermarket chains
- Quick-commerce and dark-store startups
- Local grocery store networks
- Organic and specialty food retailers
- Wholesale and B2B grocery suppliers
- Meat, seafood, and fresh produce sellers
- Pharmacy-plus-grocery convenience apps
- Franchise convenience store brands
Technologies
Stack We Rely On
Modern, battle-tested technologies chosen for reliability and scale.
- Flutter
- Node.js
- PostgreSQL
- Elasticsearch
- Redis
- Firebase
- Google Maps Platform
- AWS
0Years of Experience
0Projects Delivered
0Global Clients
0In-house Experts
0Countries Served
0Code Ownership
How We Work
What You Get In Writing
Terms that go into every agreement we sign. See all client commitments.
A Written Price Before Work Starts
Every job gets a scope and a number in writing first — a fixed price for defined work, or an hourly rate with a capped estimate. If scope changes, we re-quote before we build, not after.
You Own the Code
Source code, designs, and data are yours. We work in your repository where possible, hand over full documentation, and transfer everything at the end. No license fees, no hostage situations.
NDA Before You Share Anything
We sign your NDA — or send ours — before the first technical conversation. Your idea, your data, and your customer information stay confidential during and after the engagement.
FAQ
Grocery Delivery App — FAQs
Everything you need to know before starting your project. Still have questions? Talk to our team.
An MVP with customer app, picker app, driver app, and admin panel costs $28,000 to $50,000. Adding dark-store operations, subscriptions, and ERP integration takes a full build to $55,000 to $100,000. Hourly engagement starts at $12/hour if you prefer to scale a dedicated team instead.
Typical MVP timeline is 12 to 16 weeks, including catalog import, payment integration, and store onboarding. Quick-commerce builds with express delivery and dispatch automation run 18 to 26 weeks.
Yes. We build two-way sync with SAP, Odoo, Tally, and most POS systems via API or scheduled feeds, so shelf stock and app stock never drift apart. Catalog onboarding includes bulk import tooling for 50,000+ SKUs.
Pickers flag the item in their app, the customer instantly receives substitution options with price differences, and refund adjustments process automatically at delivery. This single workflow is the biggest driver of grocery app ratings, and ours is battle-tested.
From day one. The platform is multi-store and multi-zone by design — each location gets its own catalog overrides, pricing, slot capacity, and delivery boundaries, all managed from one admin dashboard.
Build Your Grocery Delivery Platform
From neighborhood stores to dark-store networks — get a free scoping session and launch in as little as 12 weeks.