Work/CartwheelPay
E-commerceMobile Development

CartwheelPay

A one-tap mobile wallet and checkout flow that cut cart abandonment for a marketplace app.

cartwheelpay.app
−19%
cart abandonment
1-tap
checkout
PCI
compliant

The challenge

Checkout was a five-screen slog. Shoppers bailed at the wallet step on mobile every single time.

What we built

A native wallet with biometric auth and one-tap Apple/Google Pay, folded into a checkout reduced to a single confirmable sheet.

The outcome

Cart abandonment fell 19%, checkout takes one tap for returning buyers, and the flow stays fully PCI compliant.

Tech stack

Technologies we used

Server-side
KotlinKtorPostgreSQL
Client-side
SwiftSwiftUIKotlinJetpack Compose
Integrations
Apple PayGoogle PayStripePlaid
Infrastructure
GCPCloud RunCrashlytics
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