Optus offers a contactless payment app 14 November 2014 4:50PM John Kavanagh Telecommunications company Optus has joined forces with Visa and Heritage Bank to offer its customers a contactless payment application.The service is based on a Visa prepaid debit account. Customers can load up to A$500 in their Cash by Optus account.The payment app works on Android phones and requires the user to install an NFC enabled SIM card.Optus vice president for mobile marketing, Ben White, said in a media release that Cash by Optus was the company's first step towards contactless applications in areas such as public transport. Heritage Bank is the Cash by Optus issuer. The service includes a "virtual card", which can be used for online and telephone purchases.Users can monitor their accounts online, including balances and transaction history.