Focos is a Portrait Mode editor that lets you control the amount of bokeh in your photos. In the latest update it added support for the Apple Pencil and iPad Pro.
Focos on iPad
Update Notes for Version 1.6
With this update, Focos fully supports iPad with newly designed interface which is more convenient to use the larger screens. You can take portrait pictures on iPad Pro 2018 or edit the portrait pictures transferred from your dual-camera iPhone to iPad.
It is possible to patch the depth map precisely on iPad with Apple Pencil.
You can multiple select and transfer the portrait pictures safely from iPhone to iPad within Focos for further editing.
Patch tool is now FREE to use and thus you have more reasons to get an iPad version to edit your portrait pictures precisely.
App Store: Free (Offers In-App Purchases).