You can save your projects, but you cannot re-open them until you buy a license [2]. However, you can export your songs to MP3 or WAV files to share them with the world [2].
FL Studio is famous for its policy [4].
If you buy the software once, you never have to pay for a new version again. FL Studio 12 О”П‰ПЃОµО¬ОЅ О»О®П€О·