Kvapay Mobile

Kvapay Mobile — mobile app for crypto invoices

Project overview

Mobile POS for accepting crypto payments: the merchant enters the amount, selects the network/coin, generates an invoice via QR or NFC, and receives instant status updates. Dark theme, neon-green accents, with a focus on speed and clarity for offline points of sale.

Objective

To make crypto acceptance as simple as a regular payment terminal: fast login and device linking, a minimal invoice creation flow, clear statuses, and transparent transaction history with filters. Reduce cognitive load and shorten the time required for each transaction.

Kvapay Mobile — mobile app for crypto invoices — main case image
Kvapay Mobile — mobile app for crypto invoices — project logo
Industries
  • Crypto processing, cryptocurrencies, and Web3
Services provided
  • UX mapping of user scenarios
  • UI design for iOS/Android
  • Design system: components, buttons, cards, statuses, navigation
  • Prototyping
  • Asset preparation and development specifications
What we built
  • Login via QR code scanning
  • Login via one-time code entry
  • Terminal pairing and unpairing (Unpair device)
  • Amount entry via numeric keypad
  • Display of the amount in cryptocurrency and its EUR equivalent
  • Network and coin selection before issuing the invoice
  • Adding a note to the payment invoice
  • Creating a payment invoice
  • Displaying the invoice with a QR code for payment
  • Alternative payment via NFC
  • Payment waiting timer on the invoice screen
  • Successful payment screen with date and time stamp
  • Payment error screen with date and time stamp
  • Transaction history with statuses, amounts, and notes
  • History filters by date and by network/coin
  • Section navigation
  • Menu screen
Kvapay Mobile — mobile app for crypto invoices — interface screenshot (1) Kvapay Mobile — mobile app for crypto invoices — interface screenshot (1)
Kvapay Mobile — mobile app for crypto invoices — interface screenshot (2)
Kvapay Mobile — mobile app for crypto invoices — interface screenshot (3)
Kvapay Mobile — mobile app for crypto invoices — interface screenshot (4)
Kvapay Mobile — mobile app for crypto invoices — interface screenshot (5)

Team

Anton S. Front-End
Alexandra Sh. Project Manager

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