Tapline Merchant

A merchant payments app with Tap to Pay, QR payments and a separate super-admin app for onboarding and risk.

MobilePayments start-up2026
< 3saverage tap-to-approve
2apps from one design system
99.95%API uptime target

The challenge

Small merchants needed to take card payments without buying a terminal, and the operator needed to onboard and monitor thousands of them.

What we built

Two apps: a merchant app with Tap to Pay on iPhone, NFC on Android, QR codes and payouts, and a super-admin app for KYC review, limits and transaction monitoring, backed by a custodial ledger API.

Services

iOS appsAndroid appsDevOps & cloud

Stack

SwiftKotlinNode.jsPostgreSQLAWS

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