CheckBook is a Home & Hobby::Personal Finance software developed by USINGIT. After our trial and test, the software was found to be official, secure and free. Here is the official description for CheckBook: Manage your checking accounts with this easy-to-use tool. CheckBook uses a simple window interface to enter transactions and automatically balance your checking account. Transactions are displayed in a format similar to a checkbook register. Print your transactions to compare with your bank statement. Accounts can be password protected. you can download CheckBook free now.