I’m writing this in the hopes the developer will update the app, it no longer works on newer iOS.
Adjust tire pressure seasonally with this app, it’s great, can’t find another that does this.
Check your tire pressure once a month. When major changes in weather, check, the pressure in your tires changes with the weather. This app helps you also compensate for higher/colder temps and when the lows & highs are greater …you need to adjust tire pressure.