Mobile appE-commerce & marketplacesOriginal by PayPal

Honey turned a small habit at the last step of online shopping into a product: never leaving the "promo code" box empty at checkout. The browser extension tries known codes in turn and automatically applies the one that saves the most. Users save without searching for anything, while stores win extra sales through affiliate programmes. This frictionless value proposition made the product spread fast.

Building something similar means developing a browser extension, a mobile app and a coupon data infrastructure. Site adapters that recognise the coupon field on each store's checkout page, a coupon database with success-rate tracking, and price history with drop alerts form the core. Integration with affiliate networks and commission tracking sets up the revenue side. Transparent compliance with extension store policies and affiliate rules is critical.

First version (MVP)€22,500 – €32,5008–11 weeks · excl. VAT
Full scope€33,000 – €48,00012–17 weeks · 3-person team
Recommended stackTypeScript + WebExtensions (Manifest V3), React Native, Node.js + PostgreSQL + Redis, adapter tests via Puppeteer, affiliate network APIsMobile app
How to Build an App Like Honey
How to Build an App Like Honey — First version (MVP) / Full scope

How Honey works: the core user flow

Install the extension → fill the cart on a shopping site → test coupons at checkout → apply the best discount → complete the order → get a price-drop alert
How Honey works: the core user flow
How Honey works: the core user flow

How many apps and dashboards do you need?

Browser extension

The main product, which detects the checkout page on shopping sites, tests coupons and shows price history.

Mobile app

An app that shows tracked products, price alerts, earned rewards and store deals.

Coupon and store panel

A panel where the team manages store adapters, the coupon database, affiliate agreements and success rates.

How many apps and dashboards do you need? — Honey
How many apps and dashboards do you need?

Critical features of a product like Honey

Automatic coupon testing

The coupon field on the checkout page is detected, codes are tried in turn and the one with the biggest discount is applied.

Store adapters

Selectors and rules are defined for each shopping site, and automated tests raise an alert when a site's design changes.

Coupon success statistics

Whether each code works is recorded anonymously, and old or invalid codes drop off the list.

Price history and alerts

Price changes for tracked products are charted, and a notification is sent when the price falls to the target.

Affiliate tracking infrastructure

A connection to affiliate networks is set up, and referred orders and commissions are tracked transparently.

Reward points

Points are earned on purchases at certain stores and converted into a gift card once a threshold is passed.

What goes into the first version, what comes later

First version (MVP)

  • Chrome extension and checkout page detection
  • Coupon testing for selected stores
  • Coupon database and success tracking
  • Affiliate network integration
  • Coupon and store admin panel

Later releases

  • Price history and drop alerts
  • Mobile app
  • Reward points and gift card conversion
  • Firefox, Safari and Edge extensions

Modules and how the budget is calculated

The budget is calculated with 360 SOFT’s pricing model from the modules below, about 20 screens and the project’s complexity: roughly 126 person-days for the full scope and 85 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
Admin dashboardFirst version
Product / content catalogueFirst version
Advanced search and filtersFirst version
Push notificationsFirst version
Email / SMS notificationsFirst version
Reporting and analyticsLater release
Third-party API integrationFirst version
GDPR and security hardeningFirst version

Hosting, SMS, map APIs, app store accounts and payment-provider fees are separate items. Maintenance and improvements (optional): €450 / month. We send a fixed written price within 24 hours after a free discovery call.

The hard parts

Resilience to site changes

Stores change their checkout pages often, so a broken adapter must be noticed and fixed immediately.

Affiliate and extension policies

Practices such as overriding another source's referral can break both network rules and extension store policies, so transparent, compliant tracking is a must.

Privacy

An extension can see shopping behaviour, so collecting only the data it needs and obtaining explicit consent under GDPR is the foundation of trust.

Business model

The main revenue is the affiliate commission stores pay on sales referred through the extension. Part of the commission earned is returned to the user as reward points to build loyalty. Store-specific campaigns and featured-placement packages can be sold. Charging users directly is generally avoided in this model, because the value comes from a free, frictionless way to save.

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 Honey

Most people searching “build an app like honey” 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 Honey 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 an app like Honey?

A browser extension working on selected stores plus an admin panel can be ready in a few months. As the number of supported stores grows, adapter maintenance becomes a permanent workload.

Can it be done with a mobile app alone?

Automatic coupon testing runs inside the browser, so the extension is the real product. The mobile app plays a complementary role for price tracking, alerts and rewards.

Will there be copyright or trademark issues?

The coupon collection and price tracking business model is free to use, but the Honey name, logo, interface design and code cannot be copied. Affiliate network rules must also be followed. This is general information, not legal advice.

What should I look for when choosing a company to build a browser extension?

Look for experience with Manifest V3 extension development, web automation and affiliate integrations. Ask to see sample projects that passed extension store reviews.

Costs of similar apps

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