This would be SO perfect for kids to learn how much time is left for certain tasks, but the only real problem with it is that no matter what you set the time for, the beginning graphic is always a whole circle. Would be nice if it would be a partial circle, depending on how long you set it for. I realize this presents problem of what amount of time a whole circle represents. Logical choice is one hour, but that could be configurable if needed. Having a partial circle option would allow kids to learn that 15 minutes is way longer than 1 minute, for instance. For me, this timer is almost useless without this option. But since the app is *almost* exactly what I need, I'll give it 4 stars, in hopes of being able to someday give it 5. It's literally perfect in every other way. Would happily install the paid version if this one thing were changed.