I have been using this cool little iOS app called WheelMasks to create color swatch palettes that I then import into the Affinity Photo desktop by way of the Import Palette/Document Palette and then choosing the .ase file that WheelMasks exports out.
When I try and import the .ase file, Adobe Swatch file in the Photo iPad version, I get no option to actually select the .ase file. Is this not implemented yet?