The only limitation: You cannot reopen saved project files until you purchase a license. However, you can keep the program open for days to finish a track, or export the stems to work on later. Affordable Upgrade Paths
Reddit’s r/WeAreTheMusicMakers will tell you: don't crack. Use free DAWs that are 90% as powerful as FL Studio Producer Edition.
You can find more information on the official Image-Line website or through Reddit discussions.
The true cost of cracked software is rarely financial. It includes: