The HitFilm product line provides you with several workflow options so that you can integrate HitFilm technology into your projects.
HitFilm
The core HitFilm software is standalone and requires no additional software. It includes an editor, a powerful compositor with a unified 3D workspace and over 500 effects. Switching between the editor and your visual effects shots is as easy as changing tabs in your web browser. Two variants are available: HitFilm Express, which is free, and HitFilm Pro.
Academy Award-winning planar tracking is provided by a special version of Mocha from Imagineer Systems and 3D Objects from Boris FX is included for advanced 3D titles. 
You can import 3D objects into HitFilm Pro and create sophisticated particle effects without requiring additional 3rd party plugins.
OpenFX
HitFilm Pro is OpenFX compliant. This means you can add additional functionality to the software from other plugin developers such as GenArts, NewBlue FX, Red Giant and RE:Vision.
Compatible OpenFX plugins that are installed on your system will appear in the Effects panel alongside the standard HitFilm effects library.
Find out more about HitFilm Pro’s OpenFX compliancy here.
Ignite
The Ignite collections of plugins make many of HitFilm’s effects available in your other video software, including Premiere Pro, After Effects, Final Cut Pro X, Motion, Vegas Pro, Catalyst Edit, DaVinci Resolve, NUKE, EDIUS, and Avid Media Composer.
The Ignite Pro plugins mirror many of the effects inside HitFilm Pro itself. This means you can choose whether to work with HitFilm technology inside HitFilm Pro or your established editor.
Find out more about Ignite Pro here.
Ignite Express, a smaller collection of the same plugins, is available for free, and works within the same host programs as Ignite Pro. Learn more about Ignite Express here.