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  Virtual Machinery BTree Licensing and pricing
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B+Tree Licensing

Virtual Machinery's BTree Licensing and pricing is straightforward and simple. We offer a range of licenses as outlined in the table below. Our license model is additive -

  • Base developer - This license must be purchased by all developers. It provides all the libraries, demos and documentation to allow you to start developing with Virtual Machinery's B+Tree product. This will allow you to prototype your application in a cost effective manner. If you are a single developer writing an application for your own use on a single computer then you need nothing more than this license (although it might be worth considering buying the BTree Toolkit license).
  • Site - the Base developer license extended for use by all developers at a single physical site. This allows you to distribute applications built using Virtual Machinery's B+Tree implementation on all the computers located at a single physical location. You must have purchased a Base developer license to buy a Site license.
  • Corporate - the Base developer license extended for use by all developers employed by a corporate entity. This allows you to distribute applications built using Virtual Machinery's B+Tree implementation on all the computers located on the premises of the corporate entity. You must have purchased a Base developer license to buy a Corporate license
  • Commercial distribution - this is an extension of the base developers license that allows you to distribute applications based on the Virtual Machinery B+Tree library.
All Licenses include one years free updates of the software. After that a renewal fee (shown in brackets beside the price below) is charged for each year of updates. Note that the development products are still active after one year and you are still licensed to use them. If you have a base license and a site/corporate license you only need to pay the renewal fee for the site/corporate license - if you only have the base license you will have to renew the base license if you wish to continue receiving support and updates. If you do not renew at the end of the year then you will need to re-purchase the product should you subsequently wish to upgrade to the next version. The distribution license is for a single calendar year - you must pay a renewal fee if you are still distributing products that include the Virtual Machinery BTree libraries.

Source code - this can only be purchased by holders of a Corporate License who also hold a Commercial distribution license. It is possible to extend the Virtual Machinery B+Tree library without access to source code so this code is provided as a 'comfort' to companies who rely on our code for their business. We are also happy to engage in escrow agreements with corporate entities. For details please contact us at btree@virtualmachinery.com.

Commercial Licenses
Feature Base (Single Developer) Site * Corporate * Commercial Distribution *
  Java Library (J2SE, J2EE) Included Included Included Included
  Java Demos (J2SE, J2EE) Included Included Included Included
  Java Library (All platforms) Included Included Included Included
  Java Demos (all platforms) Included Included Included Included
  iOS Library (Objective-C) Included Included Included Included
  iOS Demos (Objective-C) Included Included Included Included
  Single developer Included Included Included Included
  All developers on site Not Included Included Included Included
  All developers in company Not Included Not Included Included Included
  Commercial distribution license Not Included Included Included Included
  Price ($) (Renewal) $94.95($29.95) $499.95 ($169.95) $799.95 ($269.95) $199.95 ($99.95)
  Price () (Renewal) 74.95 (24.95) 399.95 (149.95) 699.95 (224.95) 149.95 (74.95)
  Buy (Click Link) * * *

* Site, Corporate and Commercial distribution licenses are normally only available after purchase of Base developer license. Please contact us at btree@virtualmachinery.com if you want to go straight to a Site or Corporate license.

You may be interested in some of our other products. All have demo or trial versions. Just click on the links below to find out more -


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