Video Copilot Reflect (Free) is a free plugin for Adobe After Effects, developed by Video Copilot. The current release, version 1.15, is listed as After Effects 2022 Ready and carries a last-updated date of December 17, 2021.
This version brings MFR (Multi-Frame Rendering) support. As described by the developer, plug-ins that rely on your CPU can be faster now that After Effects can start rendering multiple frames across all processor cores. The render pipeline shares memory and distributes tasks dynamically. GPU-focused plug-ins such as Element 3D and Optical Flares, which already use the graphics card, will not hold back the CPU from processing heavy tasks like keying and motion blur.
Reflect (Free) is compatible with After Effects CC2015 through 2022, including MFR support, and runs on both Mac and Windows in 32- and 64-bit environments. For current licensing, check the developer's page.