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). Extensive support through Wiki and Forum and tutorial and documentation in the form of a mind map.Freeware programs can be downloaded used free of charge and without any time limitations.Integration with Docear academic literature suite.Easy extension of functionality with add-ons and home made scripts.Approximate Search (similarity search) which allows to find search terms in a text, even if there is no exact match (e.g.Ease of use with inline- and dialog editors, object oriented main menu, context menu's, multi-language support, spell checker, properties panel, drag-and-drop functionality, hot keys, options for batch execution, publishing, sharing and selectable preferences.Password protecting of whole map and of individual nodes with DES encryption.Changing views by hiding content (folding branches, filtering, roll-up of details and hiding extensions in tooltip), finding, scrolling and navigating.Structuring nodes in terms of content (text, scientific formula, calculation, icon, image and hyperlink) and presentation area (core, details, notes, attributes, images and tooltip).Automatically styling nodes (with a bubble, color, edge type, etc.) according to hierarchical level and content (conditional styles, automatic edge color, level styles).Connecting nodes with dynamic links, free lines (connectors) and labels.Grouping nodes with visual containers (clouds) and accolade (summary node).Classifying nodes with metadata (attributes) and style types (system styles, user defined styles, level styles). ![]()
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