What features or capabilities will be locked, gone or will be missing in PhraseExpress (text expander software) after the 30-day trial period has elapsed?
In short, no features will be removed as long as you do not use the program commercially. Using it commercially means receiving money for what you do with the program.
This means basically that doodling around for fun, unpaid studies and unpaid charity work are ok.
There is actually a link on their website that explains all of that: http://www.phraseexpress.com/freeware.htm
If you want a free solution that you are allowed to use commercially, check out AutoHotkey (http://www.autohotkey.com/).