I downloaded the free snowie preflop app for my phone. 

In the first instance I defined a spot where we were on the button and facing a raise from the cutoff. The range it specified is unimportant for this query. All we need to consider is that it suggested flatting TT 100% vs such an open. 

Following this I decided to see what I would be jamming over a 4bet from the cutoff. It then suggested 5 bet jamming TT.... I don't understand how one can ever have the option to jam, as the suggestion was to flat that particular hand with 100% freq. 

I know it is a free app and I assume that it is programmed with the assumption of 100bb stacks and everyone else at the table playing optimally but, and I am no expert, this discrepancy in what to do with TT seems to be against the "overall game strategy" that I understand gto to be. For example flatting KK/QQ in certain "facing 4b" spots to protect your weaker defends. If you however only played one hand of poker ever and you were facing a 4b and held KK I guess the right play would be to jam it 100%.