The image inspector in Peakto has a section dedicated to Keywords.
Keywords displayed here are the keywords that are retrieved from the underlying file. In the case of catalogs such as Lightroom or Capture One, these are the keywords that have been created and associated in the underlying app. In the case of images in the Finder, keywords can be retrieved from the metadata embedded in the file itself (for JPEGs for example) or present in a XMP sidecar.

Adding keywords from within Peakto will be possible in a forthcoming release.