Downloading Twin Searching 2.5 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Development Tools, more precisely Web Development.
This free program is an intellectual property of Vasilios Applications. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program's installer file is commonly found as Twin Searching.exe. The most popular versions among Twin Searching users are 2.5 and 1.8.
From the developer:
A wizard like application that gives you the ability to insert a query in two search engines at the same time (selecting from a list of twelve), and follow the results in a dual frame pane of your default browser. The program permits only two search engines to be selected at a time (by ticking and un-ticking the check boxes), and does not accepts the " http:// " text in its search entry.
You may want to check out more software, such as Search My Network, Mednoid Medical Search or Global Search And Replace, which might be similar to Twin Searching.