https://www.techradar.com/best/the-best-free-photoshop-alternatives-for-mac

Photoshop is the big daddy of image creation and editing, but it isn’t cheap: even the relatively wallet-friendly Photoshop Elements 2018 is US$99.99/£86.56/AU$145.19, while a student subscription to Creative Cloud Photography is US$9.99/£9.98/AU$14.29 a month.

The excellent Photoshop alternative Affinity Photo is a bit cheaper at US$49.99/£48.99/AU$79.99, but what if your budget doesn’t even stretch to that and the filters built into the Photos just don’t cut it? The good news is that it’s possible to get very powerful image apps for free.