The "西日本シティ銀行アプリ" is the official iOS application provided by NISHI-NIPPON CITYBANKLTD. It allows users to easily and conveniently access various banking services anytime and anywhere. With this app, users can check their account balance, view transaction details, make transfers, and even open a regular deposit account if they don't already have one. The app also provides quick and easy access to internet banking services.

The main features of the app include opening a regular deposit account, checking account balance and transaction details, receiving notifications for deposits and withdrawals, setting up savings goals, making transfers and payments, transferring funds between different apps, using the smartphone as an ATM, conducting investment trust transactions, and managing investment trust performance. Additionally, users can also borrow and repay loans, make payments using the BankPay feature, generate one-time passwords for added security, and access internet banking services through NCB Direct.

Please note that the app is compatible with smartphones running iOS 11.0 or later, specifically those released by Docomo, AU, and SoftBank. However, the app may not function properly depending on the smartphone's usage status.

Overall, the "西日本シティ銀行アプリ" provides a wide range of banking services in a convenient and accessible manner, allowing users to manage their finances on the go.