Free Featurecam [best] -

FeatureCAM was a popular choice among machinists and manufacturers for its user-friendly interface and efficient workflow. However, it's worth noting that Autodesk, a well-known software company, acquired FeatureCAM in 2017. After the acquisition, Autodesk integrated FeatureCAM into its portfolio and rebranded it under the name "Fusion 360 CAM" or simply as part of Autodesk's manufacturing solutions.