D2 Enterprises
Case Study

Knock Knock App

Premium laundry services at your doorstep with seamless mobile experience

Knock Knock Mobile App

Project Overview

KnocKnocK Laundry offers premium dry cleaning, load wash, and laundry services to your door with free pick up & delivery in Singapore island wide. Rated as one of the best laundry services in Singapore, they have served more than 50,000 Singapore families.

D2 Enterprises developed a comprehensive mobile application that streamlines the entire laundry service experience, from booking and scheduling to real-time tracking and payment processing, making premium laundry services accessible and convenient for busy families.

10K+
App Downloads
4.8★
App Store Rating
50K+
Families Served
24/7
Service Support

The Challenge

Complex Scheduling

Managing pickup and delivery schedules across Singapore while accommodating customer preferences and service capacity constraints required sophisticated logistics coordination.

Service Transparency

Customers needed real-time visibility into their laundry status, pricing transparency, and clear communication about service timelines and special handling requirements.

Mobile-First Experience

Creating an intuitive mobile application that could handle complex service bookings, payment processing, and customer communication while maintaining premium user experience standards.

Our Solution

Intelligent Booking System

Developed a sophisticated booking system that allows customers to schedule pickups and deliveries based on real-time availability, service capacity, and route optimization. The system automatically suggests optimal time slots and handles special requests.

  • Real-time availability checking
  • Automated scheduling optimization
  • Special request handling

Smart Booking

AI-powered scheduling with real-time optimization

Real-Time Tracking

Complete visibility throughout the service lifecycle

Comprehensive Tracking System

Implemented end-to-end tracking capabilities that provide customers with real-time updates on their laundry status, from pickup confirmation through processing stages to delivery completion, with push notifications and SMS updates.

  • Live status updates
  • Push notifications
  • Delivery confirmation

Premium User Experience

Designed an elegant, intuitive mobile interface that reflects the premium nature of the service while ensuring ease of use for customers of all technical backgrounds. The app includes personalized preferences, service history, and loyalty features.

  • Personalized preferences
  • Service history tracking
  • Loyalty program integration

Premium UX

Elegant design with personalized customer experience

Technology Stack

RN

React Native

Cross-platform mobile app development

N

Node.js

Backend API and business logic

S

Socket.io

Real-time communication and updates

M

MongoDB

Flexible document database

Mobile Technologies

React Native Redux AsyncStorage Push Notifications Geolocation

Backend & Integration

Express.js Payment Gateway SMS API Email Service Analytics

Outstanding Results

App Performance

10K+ Downloads

Strong adoption rate with consistent growth in user base

4.8★ App Rating

Exceptional user satisfaction with premium service experience

50K+ Families Served

Established as a trusted laundry service provider in Singapore

Business Impact

Market Leadership

Recognized as one of Singapore's best laundry services

Operational Efficiency

Streamlined operations with automated scheduling and tracking

Customer Loyalty

High retention rates with repeat customers and referrals

Key Features

Online Booking

Easy scheduling with real-time availability and instant confirmation

Real-time Scheduling

Dynamic scheduling system that adapts to capacity and customer preferences

AI-Powered Logistics

Intelligent route optimization and automated logistics management

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