Cashbook Expense Tracker for Android allows you to track expense, income, mileage, sales, or receipts for tax/reimbursement/bookkeeping purposes. It features password protection, user-extendable Database, and multiple accounts. You can select from 27 most used currencies. User can create as many accounts as needed for multiple businesses or companies. User can add, delete, or rename income/expense categories, payer/payee, account, and vehicle information.