Add diced tomatoes and apple to Instant Pot. Close lid, and set timer to 4 minutes on high pressure. Allow natural release of pressure for at least 10 minutes before carefully releasing remaining pressure and opening lid.
Set Instant Pot to saute and simmer the tomato mixture for about 15-20 minutes, stirring occasionally, until the apple breaks down and the liquid is reduced by about half.
Stir in the smoked paprika and vinegar.
Ladle into jelly jars and refrigerate until ready to use. It will thicken more as it cools. I recommend serving on toast with avocado, drizzled with Balsamic vinegar!
Notes
If you don't have a pressure cooker, you can do this on the stove! Add the tomatoes and apple to your pot, and simmer until the apple breaks down and the liquid is reduced by at least half. Stir in the paprika and vinegar and ladle into jars.