HappyKosher
Kosher food delivery for New York, on every screen.
Overview
HappyKosher is a food delivery marketplace for kosher restaurants and their customers in New York. Customers order on iPhone, Android or the web, with every restaurant’s kosher certification on show. Restaurants run their orders, menus and earnings from their own app, and the HappyKosher team runs the marketplace from an admin panel.
We are HappyKosher’s entire product and engineering team. In 2026 we moved the business onto a new, self-hosted platform, bringing its existing customers and order history with it, and we have built and shipped every product since: four products, one backend, and the integrations that connect them to restaurants’ kitchens, couriers and payments.
customer app, restaurant app, web ordering and admin, on one backend
on the App Store, Google Play and happykosher.app
restaurant POS through Stream, couriers through Cartwheel, payments through Stripe
The challenge
A delivery marketplace is four products that have to agree with each other. The price a customer sees on the web has to match the app, the kitchen has to get the order the moment it’s paid for, and the courier’s progress has to reach the customer’s phone.
HappyKosher also had to fit how its restaurants already work. Some run their menus and kitchens on a point-of-sale system, deliveries go out through third-party courier fleets, and in a close-knit community every repeat order counts.
Platforms
Customers order on any of these. Restaurants run their side from their own app, and the HappyKosher team from the admin panel.
Inside the app
Twenty screens across the four products: the customer app, the restaurant app, ordering on the web and the admin panel. Tap any screen for a closer look.
01Customer app · iOS & Android · Flutter
5 screens
iOS & Android · Flutter. Browse kosher restaurants, order, follow the courier live and earn points on every order.
01Home: the current order on its way, with the driver and arrival time
02A restaurant, with its kosher certification, delivery time, reviews and menu
03The cart, with variations and add-ons
04Reward earned: points credited for an order, with each bonus spelled out
05Loyalty points: the balance, its Happy Cash value and every transaction
How we approached it
We treated HappyKosher as one system with four front doors, and shipped it in small, reversible releases, each with its own backups, checks and rollback plan.
Start from proven ground. Instead of building a marketplace from zero, we started from a licensed multi-restaurant platform and made it HappyKosher’s own: rebranded and upgraded every app, self-hosted it on AWS, and imported existing customers and orders with a rollback for every import.
Restaurants keep their POS. Through Stream, a restaurant connects its point-of-sale system once. Its menu syncs into HappyKosher, orders go straight to the kitchen, and when it pauses or disconnects in Stream, HappyKosher shows it as closed.
Tracking you can trust. Deliveries are dispatched to courier fleets through Cartwheel, and the courier’s own pickup and drop-off times appear on the home screen and the web. iPhone Live Activities, which bring the order to the Lock Screen, are rolling out now.
Rewards that bring people back. Every completed order earns loyalty points, with bonuses on a customer’s first orders. Points turn into Happy Cash for the next order, customers see what an order will earn while it’s on its way, and a referral rewards both friends once the new customer has ordered.
Checkout without friction. Saved cards through Stripe for one-tap checkout, the Happy Cash wallet and cash on delivery, with delivery fees set by zone and distance so the app and the web always quote the same price.
Problems found before customers notice. The admin panel tracks every integration failure, from a menu sync or delivery quote to a missing tax rate or a failed webhook, by severity and restaurant, and alerts the team.
What we built
Kosher-first discovery
Restaurants by cuisine and category, each with its kosher certification.
Delivery, pickup or dine-in
One checkout for every way to order, with scheduling and courier tips.
Live order tracking
The courier’s pickup and arrival times on the home screen, the web and the map.
Loyalty and Happy Cash
Points on every order, milestone bonuses, and a wallet to spend them.
Refer a friend
Both customers are rewarded once the new customer has ordered.
Saved cards
One-tap checkout with cards saved securely through Stripe.
Restaurant app
Orders by status, menu and stock, campaigns, coupons and withdrawals.
POS integration
Menus, orders and opening status kept in sync with restaurants’ systems via Stream.
Admin and monitoring
Orders, restaurants, zones and every integration’s health in one panel.
Got something like this in mind?
We take products from a first sketch to the app store. Tell us what you're building and we'll tell you honestly how we'd approach it.