I use Affinity when I'm scrapping on the go. Make sure to join the group Cherry suggested as I have lots of tutorials on there, and a set of shadow styles so you can start scrapping right away. There will be differences between Affinity and PS/PSE that you'll have to get used to (such as the styles and the move tool) but you can do pretty much anything you want in it. I also like that you can use PSD templates. My most recent layout is done in Affinity.
