Countdown software that will ring in "standby"

[andsoitgoes]

I miss my sidekick.

I need to have a countdown timer that will work when the screen is off, I tried one and it worked - but didn't notify me at all. I think it was the SPB time, to think about it..

Simply put, I need something to do a timed countdown and the notify me by sound/vibrate when needed.

I'm even fine paying money, I just need it to work..

Would appreciate any help.