C-Buy
Construction materials marketplace
A full building-materials marketplace for Andhra Pradesh — customers order cement, steel, bricks and tools from local vendors online, and three published Android apps run the whole operation: shopping, selling and delivery.
Laravel
PHP
MySQL
Android
Kotlin
Firebase
Razorpay
JavaScript
NginxLaravelPHPMySQLAndroidKotlinFirebaseRazorpayJavaScriptNginxLaravelPHPMySQLAndroidKotlinFirebaseRazorpayJavaScriptNginxLaravelPHPMySQLAndroidKotlinFirebaseRazorpayJavaScriptNginxNginxJavaScriptRazorpayFirebaseKotlinAndroidMySQLPHPLaravelNginxJavaScriptRazorpayFirebaseKotlinAndroidMySQLPHPLaravelNginxJavaScriptRazorpayFirebaseKotlinAndroidMySQLPHPLaravelNginxJavaScriptRazorpayFirebaseKotlinAndroidMySQLPHPLaravelAbout the product
Construction materials are one of the last things people still buy over the phone — calling suppliers, haggling on price, arranging transport themselves. C-Buy turns that entire offline workflow into a marketplace: browse categories like cement, roofing sheets, iron & steel and red clay bricks from verified local vendors, order in a few taps, and get delivery to the site.
The platform is four connected surfaces on one backend. Customers get the web storefront and the C-Buy customer app. Vendors get a store panel plus a dedicated vendor app where new orders land instantly — they can accept, reject or mark self-delivery, manage products and pricing, and see per-order commissions transparently. Delivery partners get their own app with order alerts, GPS navigation and payout tracking. And admins run the whole marketplace — stores, commissions, offers — from the admin panel.
This is a live, operating marketplace — not a demo. The screenshots below come from the real storefront and from the actual apps published on Google Play (com.cbuy.customer, com.cbuy.vendor, com.cbuy.delivery). Orders flow customer app → vendor app → delivery partner, with each side seeing exactly the stage that matters to them.
Inside the platform
Marketplace storefront
Category-led catalogue — cement, steel, bricks, sand, tools — with search, offers and a city-first browsing experience.
Customer app
The full shop in a phone — browse, order, pay via wallet or COD, track delivery. Published on Google Play.
Vendor panel + app
Orders land instantly with accept/reject/self-delivery actions, product & price management, and clear commission math per order.
Delivery partner app
Driver onboarding, real-time order alerts, live GPS navigation and transparent earnings with weekly payouts.
Admin panel
Marketplace control — stores, users, commissions, banners, offers and zones, all in one back office.
Location-aware catalog
Customers pick their city first; they only see vendors and prices that actually deliver there.
Offers & wallet
Coupons, cashback offers and an in-app wallet that works across web and all three apps.
Multi-vendor engine
Each vendor runs an independent store — own products, own working hours, own delivery zones.
Published apps
The challenge
- Four distinct user roles — customers, vendors, delivery partners and admins — each needing their own app, permissions and workflows on one shared backend.
- Location-aware commerce: vendors only serve their delivery zones, so the catalogue had to filter by the customer's city before anything could be ordered.
- A real order lifecycle — cart → vendor acceptance → delivery assignment → doorstep — with commission math, wallet balances and cashback offers tracked at every step.
- Vendors aren't desk workers either — order alerts, accept/reject and product management had to work from a phone in a supply yard.
What we built
- Four connected panels — customer, vendor, admin and delivery — sharing one backend, so a single order flows through every side of the marketplace without re-entry.
- City-first UX: shoppers set their location up front and only see stores, prices and delivery options that genuinely serve it.
- Three published Android apps — customer shopping, vendor order management, and delivery partner with GPS navigation and payouts — each built for its role.
- A commerce engine underneath it all: coupons, cashback, wallet payments, per-order commissions and vendor working hours handled natively.
Delivered
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