Imagify plugin is now compatible with AMPforWP. It does not require any 3rd party addons to enable it.

What features are compatible at the moment?

1. Support Webp images in Chrome Browser in AMP.
2. Support fallback image in AMP.
3. Support optimized and compressed Featured images on the posts.
4. Perfectly running a website when the plugin is active.

If there is any feature from the Imagify plugin that is not available, then you can request it from this support page.