Instant Check - Version 3.0 If you are in business you need a program that allows you to create a check and deposit it without waiting for the mail to arrive or hoping that your client will remember to send you one.Instant Check is now available for you to try for ten days free.You can create your client's check right in your office or home and you can create your own checks then fax them or mail them. Instant Check will even do your bookkeeping for you.