Adobe Photoshop Sketch

OA focused ‘satellite’ app rather than full-fat Photoshop, Sketch is about quickly getting ideas down using natural tools. From pressure-sensitivity through to shape stencils, it’s a fab freebie for finger-painting dabblers. It’s the watercolours that impress most, colours slowly bleeding into the virtual canvas.

Stuff says

★★★★, £free / Android, IOS