Automated Text Response App Development

I need a simple background app for iPhone and Android. The app will automatically reply to all incoming text messages with: "I'm away from my phone and will get back to you later."

Key Features:
- Runs in background, no UI/UX required
- Listens for all new text messages
- Sends standard reply to all text messages
- Detailed logging of sent messages with timestamps and sender info

Future Scope:
- Similar functionality for email apps (Gmail, Yahoo, Outlook)
- Expand to messaging apps (Messenger, WhatsApp, Snap, etc.)

Ideal Skills and Experience:
- Mobile app development for iOS and Android
- Experience with background services and message handling
- Ability to implement logging features