Facebook Group Auto-Poster Mobile App

I'm in need of a dedicated Android app that syncs with all the Facebook groups I'm a member of and automatically posts on my behalf.

Key Features:
- An Android app that I can download to my phone
- Syncs with all my Facebook groups
- Auto-posts whenever I make a post on my phone
- Handles text posts and images (no video posting required)

Usage:
- Ideally, the app would be set to auto-post once a day

Skills & Experience Required:
- Proficiency in Android app development
- Experience with Facebook API integration
- Prior work on creating auto-posting software

I've seen similar software but it's not working for me. I'm looking for something straightforward and reliable. Please reach out if you can help.