Web platformE-commerce & marketplaces

Groupon-style discount sites give businesses a way to fill spare capacity: a restaurant's quiet hours, a spa's empty appointments or a hotel's midweek rooms are sold as attractively priced packages. Users, in turn, discover new places in their city at a good price. Success depends on campaigns being genuinely good value, businesses serving voucher holders well and redemption being verified without friction.

Building something similar takes a user website and app, a merchant panel and an admin panel used by the sales team. City- and category-based campaign listings, stock- and time-limited sales, voucher code generation, in-store validation, refunds and merchant payouts form the core. For marketplace payments you need a platform payments infrastructure with sub-merchant support, such as Stripe Connect or Adyen for Platforms, plus e-invoicing integration where required.

First version (MVP)€23,000 – €33,0008–11 weeks · excl. VAT
Full scope€32,000 – €46,50011–15 weeks · 3-person team
Recommended stackNext.js + Laravel or Node.js + MySQL / PostgreSQL + Elasticsearch, Redis, Stripe / Adyen marketplace, e-invoicing integrationWeb platform
How to Build a Discount and Coupon Website
How to Build a Discount and Coupon Website — First version (MVP) / Full scope

How Discount and coupon website works: the core user flow

Pick a city → browse deals → buy a campaign → receive the voucher code → scan the code at the business → rate the experience
How Discount and coupon website works: the core user flow
How Discount and coupon website works: the core user flow

How many apps and dashboards do you need?

User website and app

The interface where users discover and buy deals, store their vouchers and rate businesses.

Merchant panel

A panel where a business drafts campaigns, validates vouchers and follows sales and payout reports.

Admin panel

A panel where the sales team approves campaigns, curates city showcases and manages refunds and payments.

How many apps and dashboards do you need? — Discount and coupon website
How many apps and dashboards do you need?

Critical features of a product like Discount and coupon website

Time-limited, stocked campaigns

Each deal has a start and end date, a total stock and a per-person purchase limit, and a countdown creates urgency.

Voucher generation and validation

A unique code and QR are generated at purchase, and the merchant panel or a mobile screen marks it as redeemed with one tap.

City and location showcase

Campaigns are ranked by the user's city and proximity and shown on a map.

Payouts and reconciliation

The payment due to a business is calculated periodically from redeemed vouchers after commission is deducted.

Personalised newsletter

A daily deals email and notification are prepared automatically according to the user's interests and city.

Verified reviews

Only people who have redeemed their voucher can rate a business, which keeps reviews trustworthy.

What goes into the first version, what comes later

First version (MVP)

  • City and category-based campaign listings
  • Purchase and voucher code generation
  • Merchant panel and voucher validation
  • Campaign approval and showcase management
  • Refund process and basic payout report

Later releases

  • Mobile app and location-based notifications
  • Personalised newsletter engine
  • Sending vouchers as gifts
  • Separate verticals for travel and product campaigns

Modules and how the budget is calculated

The budget is calculated with 360 SOFT’s pricing model from the modules below, about 30 screens and the project’s complexity: roughly 122 person-days for the full scope and 87 person-days for the first version. Every module you drop lowers the budget directly.

ModulePhase
Sign-up, login, social loginFirst version
User profile and settingsFirst version
Roles and permissionsFirst version
Admin dashboardFirst version
Product / content catalogueFirst version
Cart and checkoutFirst version
Online payments (Stripe / PSP)First version
Advanced search and filtersFirst version
Maps, location, routingFirst version
Barcode / RFID / handheldLater release
Marketplace integration (Amazon, etc.)Later release
Ratings and reviewsFirst version
Email / SMS notificationsFirst version
E-invoicingFirst version

Hosting, SMS, map APIs, app store accounts and payment-provider fees are separate items. Maintenance and improvements (optional): €400 / month. We send a fixed written price within 24 hours after a free discovery call.

The hard parts

Merchant satisfaction

Heavy discounts and commission can push a business into a loss, so campaigns must be designed with the goal of winning repeat customers.

Voucher abuse

Copied codes or attempts to use one several times must be prevented with real-time validation and single-use codes.

Sales operations

The site stays alive only if new campaigns keep coming, so the software must be designed to speed up the sales team.

Business model

The main revenue is the commission on each voucher sold. Featured-placement packages on the home page, city showcase and newsletter can be sold to merchants separately. On the user side, you can add a subscription that offers perks such as membership-only extra discounts or free refunds. Rules on unredeemed vouchers must be clear and comply with consumer law.

Get a free quote for your project

Let us scope it together and send a fixed written quote within 24 hours. NDA on request; you own the source code.

Your details are used only to prepare your quote and are never shared. Privacy

Choosing a company to build an app like Discount and coupon website

Most people searching “build a coupon website” are really looking for a reliable app development company. When comparing quotes, check four things:

  • Can you try similar products they have shipped, in the stores or live?
  • Are the source code, design files, servers and store accounts transferred to you by contract?
  • Do they show a working demo every two weeks, with written scope and acceptance criteria?
  • Are maintenance, scaling and GDPR/security costs written into the quote?

Copyright and trademarks

A business model and features are generally not protected on their own, but the Discount and coupon website name, logo, interface design, content and source code are. That is why we build a product with similar functionality but your own brand, design and code. This is not legal advice; we recommend a trademark search before launch.

Frequently asked questions

How long does it take to build a coupon website?

A first version with campaign listings, purchase, voucher generation and a merchant panel can be ready in a few months. The mobile app and personalisation engine can be left to later phases.

How many separate panels do we need?

Three interfaces are needed: the user site, a merchant panel and an admin panel. A mobile-friendly validation screen is also important so businesses can scan vouchers on site.

Off-the-shelf script or custom software?

Ready-made coupon scripts give a quick start but may fall short on marketplace payments, payouts and local invoicing needs. For a project aiming to grow, custom software is safer.

What should I look for when choosing a company to build a coupon website?

Look for experience in e-commerce, marketplace payments and infrastructure that withstands high-traffic campaign days. Having built payment and invoicing integrations for your market before is important.

Costs of similar apps

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