Download NVDA (Latest 2021) for Windows 10, 8, 7

Free software

Free programs You can download it for free and without time restrictions. Free products can be used for free for both personal and business (commercial use).

Open source

Open source software is software with source code that anyone can inspect, modify, or improve. Programs issued under this license may be used free of charge for both personal and commercial purposes. There are many different open source licenses, but they all have to conform to the Open Source definition – in short: The software can be used, modified and shared freely.

Free to play

This license is commonly used for video games as well allows users to download and play the game for free. Basically, a product is offered for free for play (Freemium) and the user can decide if he wants to pay the money (Premium) for additional features, services, virtual or physical goods that extend the functionality of the game. In some cases, ads may appear to users.

Demonstration

Demo programs have one limited functionality for free, but charge for an advanced feature set or remove ads from program interfaces. In some cases, all features are disabled until the license is purchased. Demonstrations are usually not limited in time (like trial software), but functionality is limited.

Trial

The trial software allows the user to rate the software for one for a limited time. After this trial period (usually 15 to 90 days) the user can decide whether to purchase the software or not. Although most software trials are limited in time, some also have feature limitations.

Paid

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