Official mobile application service "Express Payment". Service "Express Payment" provides a quick, easy connection and interaction with SSIS (AIS "Calculation"). Information on the process of connecting and interacting https://express-pay.by/ presented on the site.With the mobile application you can receive instant notification of payments made, to put the new account, view existing accounts and received payments.Application functionality:- nomination of new accounts in the «Online» mode;- PUSH-instant notifications when payments;- View the accounts with the possibility of filtering;- View payments to filter;- Generation of QR-codes for accounts- protection pin code application.