Religious jews do not control electrical appliances on the sabbath, including alarm clocks. Many also say morning prayers starting at different times in morning, depending on the day of the jewish calendar.
B'sd I intend for the app to always be free. Apple hosts it for free under a non-profit account, because we've committed to it being free. At some point, I might offer the ability to donate to my local shul. For now, you can express your appreciation financially only via the KAJ website.
Maybe. It can't hurt to ask.
Nobody has asked me them yet.