I use an android app which doesnt stop ringing unless you solve an equation or a puzzle XD
Yes , in the phone.
i use my phone
i have 3 a battery operated, an analog and a digital. the digital is the least dependable. so much for technology
Just on my phone and my tablet.
I bought a wonderful alarm clock which wakes you up gradually. It's a kind that is used in meditation (I think!) but you wake up gently. Even my grandkid thinks it's great.