I use this to walk/slow trot in intervals. I’ve used it for awhile. In July I discovered Pokémon GO. On my walking/saunter route, sometimes I stop to get in a raid. I used to be able to pause IntervalTimer Pro, fight the raid, then resume my routine. Since I upgraded to iOS 12 (from iOS 10), if I pause IntervalTimer Pro and switch to another app, my routine stops. I was used to that earlier if I had it paused for awhile (like 5 minutes or more), but today I lost my routine when it was paused and I switched apps for maybe 10 seconds, if that.I went to Deltaworks’ website to try to contact their support rather than mention this in a review, but they don’t seem to have anything listed for support. Additionally, IntervalTimer (free or pro) is not listed on their site.I also echo a previous reviewer’s comment about available sounds. I’m disappointed some of the sounds were removed. They remain in old routines I created, but I cannot add those same sounds to new routines. I assume that was an IP thing, and sometimes things like that can’t be helped. I miss the human voice announcing the routine is complete (she was replaced by a computer-generated voice). Again, maybe that was a residuals thing and the devs needed to cut some costs. But I miss the human.I really miss being able to pause for a minute or three, though. If this can’t be fixed, I’ll have to figure out how to force my Fitbit app to do this, or I’ll have to get another interval app.