Viber has a fairly simple and very nice GUI. Viber app also allows users to create a conference of 40 participants, and provides a high level and quality of sound. To do this, you only need to allow the application to access your phone book and wait until the program finds in the database all your friends who are also registered in the system. This procedure was invented, so that other users can easily find you in the database.īuilding your own contact list is not difficult. In order to register in the system, a client will ask you to enter your phone number, which, as a result will be your login as a customer. To start using this application, you will need to connect your device to one of the Wi-Fi or 3G networks. Usually commercial software or games are produced for sale or to serve a commercial purpose.Viber is a client that allows you to perform absolutely free instant messaging and voice calls across the globe. Even though, most trial software products are only time-limited some also have feature limitations. After that trial period (usually 15 to 90 days) the user can decide whether to buy the software or not. Trial software allows the user to evaluate the software for a limited amount of time. Demos are usually not time-limited (like Trial software) but the functionality is limited. In some cases, all the functionality is disabled until the license is purchased. Demoĭemo programs have a limited functionality for free, but charge for an advanced set of features or for the removal of advertisements from the program's interfaces. In some cases, ads may be show to the users. Basically, a product is offered Free to Play (Freemium) and the user can decide if he wants to pay the money (Premium) for additional features, services, virtual or physical goods that expand the functionality of the game. This license is commonly used for video games and it allows users to download and play the game for free. There are many different open source licenses but they all must comply with the Open Source Definition - in brief: the software can be freely used, modified and shared. Programs released under this license can be used at no cost for both personal and commercial purposes. Open Source software is software with source code that anyone can inspect, modify or enhance.
Freeware products can be used free of charge for both personal and professional (commercial use). Freeware programs can be downloaded used free of charge and without any time limitations.
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