META App for User Comment Monitoring

I'm looking for a web-based META app that can track user comments across Instagram, Facebook, and WhatsApp. This app should monitor multiple specified words and provide real-time email notifications when a keyword is detected.

Key Features:
- Monitoring of user comments
- Tracking of multiple specified keywords by the user of the service
- Real-time saving item upon keyword detection.

Ideal Skills:
- Proficiency in app development for META platforms.
- Experience with real-time notification systems.
- Skills in implementing keyword tracking features.
- Knowledge of user privacy regulations and ethical coding practices.

Additional Information:
- I will not provide my Facebook account data.
- Please specify what you need from my side, your pricing, and the estimated completion time.
- I don't know how to setup the app in facebook and i don't have registred company

Looking forward to your proposal.