PoliteDND

Polite DND (PDND for short) is a Do Not Disturb application with a twist: instead of just silencing your phone or sending an SMS with apologies, it disables the cellphone's ability to receive phone calls altogether by enabling Airplane Mode. Sometimes you just want to be unavailable, not bothering to explain why you're not taking calls, while still using your phone. It's easier to explain that you're having "technical difficulties" than telling your contacts you don't want to talk to them.

Features:
- Schedule when the app runs, much like an alarm clock: define when to start and stop the app, for which days of the week it will be active and it'll do its magic.
- Run-once schedules: you can create a "one-shot" schedule that will run once, on the day you create it.
- Manual Stop: you can create schedules that run indefinitely, until manually stopped.