The leading collaborative genealogy app worldwide, webtrees is an open source software, and is totally free. All you need to use it is a website with PHP and MySQL installed. It works from standard GEDCOM files, and is therefore compatible with every major desktop application; and it aims to be efficient and effective by using the right combination of third-party tools, design techniques and open standards.
You can easily update your application from inside the cPanel.
We use mod_security to add an extra layer of security on top of your web application.
With TrueHoster, you get the same application and configuration regardless of the hosting you are deploying webtrees to. This makes it easy to migrate between different servers using cPanel.