Limits of the free demo version are:

>> What are the limits/features of the free Mac version?
>> Could be anything from ad-, adware- or spyware-supported to
>> shareware, time-limited, feature-limited...
>>
The shareware demo is limited to three Fish and you have to enter TESTFISH every time you run the program. We have a strict privacy policy here. No spyware, adware or viruses.

Please let me know if you have any questions,

A R
Customer Service
SereneScreen.com