There’s a free trial photographers can explore the software for 10 days for free. You have to do it all over again if you want to edit again with that extension. To use the desktop version of Affinity Photo, you have to make a single payment of 49.99. Also, you cannot go back into that edit done with the extension and change it, the changes are baked into that JPG. When you click “Revert to Original” it simply delete the jpg and shows the RAW again. What I have seen in Photos so far with the extension is that it does the same as plug-in, generating a jpg file. When Photos was launched, with the new PhotoKit they were saying that the extensions would be able to tap directly into the RAW file without the need to export/import roundtrip and subsequently adding a new file to the library. The changes were “baked” into the file, hence it was called destructive editing. Plug-ins for Aperture, on the other had, had the file exported to whatever format you wanted ( TIFF, etc), the worked on the plugin and re-imported into Aperture (usually as a large file).

This was called non-destructive adjustment. This allows multiple versions without increasing significantly the size of your library. Aperture just makes a small text file with all the adjustments. If you recall, in Aperture, with its native adjustments, the RAW file is not modified AND a jpg is not generated (other than the preview).

Affinity vs pixelmator