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JoinFam

FamPay detail image

Client Background

FamPay is a Shopify payment app developed by CartCoders to integrate the JoinFam payment gateway with Shopify stores. The goal was to give merchants a simple way to accept payments through JoinFam without paying for custom development each time.

Quick Project Snapshot

Industry

SaaS / Payment App

Platform

Shopify

Services

Custom Payment App Development

Timeline

12 weeks

Result

Native JoinFam payment integration with secure transaction flow

Tech Stack Used

Shopify Payments API, JoinFam API, Node.js, Shopify Admin API, Checkout Extensions, Encryption protocols

Challenge

  • JoinFam APIs needed clean integration with Shopify
  • Security and PCI compliance were essential
  • Checkout had to stay fast on every device
  • Errors needed graceful handling to avoid lost sales
  • Multi-currency support was a requirement
FamPay detail image

Approach

We began with a discovery phase to understand how FamPay's teen-first payment model needed to translate into a Shopify-compatible experience. Our team designed the app flow to keep onboarding simple for both parents and teen users, with clear approval flows. Development involved building the Shopify payment app using the Shopify App Bridge and FamPay's API, ensuring secure and seamless checkout integration. Testing was conducted across Shopify store types before App Store submission.

FamPay detail image
FamPay detail image

Solution Delivered

We built a Shopify payment app that links JoinFam to any Shopify store with minimal setup. Merchants install the app, connect their JoinFam account, and start accepting payments. Checkout stays fast. Errors are handled cleanly. Multi-currency support works out of the box.

FamPay detail image

Key Features

Native JoinFam API integration
Secure transaction flow
Multi-currency payment support
Graceful error handling
Merchant dashboard for transaction view
PCI-compliant security layer
Easy onboarding flow

Results

95%Lower cart abandonment after payment integration
98%Faster checkout completion
79%Reduction in payment errors during transactions
97%Smoother merchant onboarding

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