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Free software

Free programs can be downloaded and used for free and without time limits. Free software products can be used free of charge for both personal and professional (commercial) purposes.

Open source

Open source software is software with source code that anyone can review, change, or improve. Programs released under this license can be used free of charge for both personal and commercial purposes. There are many different open source licenses, but they all must meet the definition of open source. the software can be freely used, modified and distributed.

Free to play

This license is usually used for video games and it allows users to download and play the game for free. Essentially, the product is offered for free (Freemium), and the user can decide whether he wants to pay money (Premium) for additional features, services, virtual or physical goods that expand the functionality of the game. In some cases, users may be shown advertisements.

Demo

Demo programs have limited functionality free, but charges apply for an expanded set of features or for removing advertising from program interfaces. In some cases, all functionality is disabled until the license is purchased. Demo versions are usually not limited in time (like a trial version of software), but the functionality is limited.

Trial

Trial software allows the user to evaluate the software for limited amount of time. After the trial period (usually 15 to 90 days), the user can decide whether to purchase the software or not. While most trial software products are time-limited, some also have feature limitations.

Paid

Typically commercial software or games are produced for sale or service commercial purpose.