Both are quite mature products these days, with subtly different emphases.
As with this release, Pixelmator Pro has prioritized ML-powered tools and has been an early adopter of new Mac technologies like utilizing the neural cores on M1/M2 processors.
Affinity Photo is in some ways a more traditional photo editor, and its biggest selling point may be its integration with the other members of the Affinity suite, Affinity Designer and Affinity Publisher.
As with this release, Pixelmator Pro has prioritized ML-powered tools and has been an early adopter of new Mac technologies like utilizing the neural cores on M1/M2 processors.
Affinity Photo is in some ways a more traditional photo editor, and its biggest selling point may be its integration with the other members of the Affinity suite, Affinity Designer and Affinity Publisher.