Apple named Aurora HDR 2018 as their Best Mac App of 2017. To celebrate this milestone, Aurora HDR 2018 for both Mac & Windows will be $20 off for the rest of December (with a pack of extra bonuses included). Current users of Aurora HDR may upgrade for $39, new users can purchase the software for $79.
Affinity Photo for iPad won app of the Year 2017 and is currently 50% off.