More recently I've started playing around with an app called Darkr which is a bit more involved - you take a picture through various camera format simulations before you head off into the darkroom to develop and print the image. Quirky and a bit of fun.
Here's one shot yesterday using Blackie on the iPhone 11. I initially intended to go for a short walk, then decided to go on a slightly longer loop, then up the next track then thought "nice evening, why not head to the top of the hill"....