I have a new phone app called PhotoFuze, it took me ages to do anything with it, I’m not sure if it was the lack of instruction or the lack of my brain power but I didn’t find it at all intuitive.
Maybe I don’t have the right pictures to blend together or I’m too serious but after a while playing, I came up with this. I really like it.

The background is a man and child walking towards the waters edge. The second layer is of the wreck of a ship. When you OK your two layers you only see the first layer on your screen, then with your finger you ‘rub through’ the first layer to reveal the second layer.
When I got the hang of which way ’round to place the images I had some fun.
Chalks first, pencils second. rub through the chalks to reveal the pencils.

Bottle & glass and a pencil sketch of a flower

Three layers here. Cloudy sky and chalks. Rub through to show the chalks and then fuse the picture. Added a blue sky with plane.

This is Beach and Sea processed with Glaze and then I added the vintage car

And a young gull with a fancy hair do.
PhotoFuze
Thanks to Prairie Jill for Mobile Monday.