Manage your Citibank Accounts and Credit Cards with Citi Mobile! Just install the app and sign-in with your User ID and Internet Password (IPIN). Citi Mobile. Citi Mobile App provides a convenient way to take care of everyday banking, browse Citibank Dining Program partner restaurants and generate a One-Time PIN. Capital City Bank Mobile. Track your debit card spending. Online Banking Login · Help · Locations · Checking · Personal Loans. Find Us On.