I used part of the "Laundry App UI Kit Sketch Resource" design that was designed by Satheesh Kumar at: https://www.sketchappsources.com/free-source/3397-laundry-app-ui-kit-sketch-freebie-resource.html to create a quick prototype

The app to make you feel better. In production.

3 different counters using variables 1. A standard counter 2. A counter from the number of seconds the user sets 3. A countdown

Going to a screen depending on a picker selection using states, variables and the 'Fire an items event' action