Is there an iPhone timer app that has a minutes-only and/or a seconds-only option?

I'm looking for a timer app on my phone where I can set a timer that counts down, but have it read literal minutes or seconds. Like instead of 6:00:00 for 6 hours, I'd want it to read 240:00 (240 minutes) or just have it read 14,400 seconds.

I've downloaded about 20 free timer apps, and can't find what I'm looking for. Is there one? Even if it costs money? But I'd prefer it to be free…

It would be a waste of someone's time to create an app like that.

For all the headache just use the built in timer and then multiply the total to equal mins. Or sec's. I'm not sure you'll be able to find one that does that. Best luck.