Adobe Draw app for iOS or Android.
Adobe Draw is free and integrates with Adobe Creative Cloud.
I draw every product and icon in all of my videos and tutorials using Adobe Draw on my iPad Pro using an Apple Pencil.
Adobe Draw is great because all of the files can be stored in my Creative Cloud library and I can open them up in Photoshop or Illustrator.
Love this app along with about 15 other really awesome mobile apps from Adobe.
