Be careful about copyright infringement when using orphanware. Postcardware - not considered freeware because the author wants you to send them a postcard as the price of using the software. The cost is the postcard. It's not to much to ask for their effort and usually, it's optional anyway. Registerware - the cost is that you must provide personal information via registration.
Some people falsify the information which is requested.
However, since the author has asked the price, falsifying what they are asking for is not ethical. Purchasing the software removes these limitations and renders the software fully functional. Not the same as trialware, since you can save and print. Often, after you remove the software, the files that do the spying remain on your hard drive. The intention of the author is that you learn what the program can do and how to use it so that you will then purchase the unlimited commercial version.