Cross-Platform Chatbot Mobile App Development

I'm in need of a mobile app that operates seamlessly on both iOS and Android platforms. The core function of this app is to serve as an interactive chatbot.

Key requirements:
- Expertise in developing cross-platform mobile applications.
- Extensive experience in integrating Natural Language Processing (NLP) capabilities into mobile apps.
- A solid understanding of iOS and Android development standards and practices.

Ideal skills includes:
- Proficiency in languages such as Swift, Kotlin, and Java.
- Experience with cross-platform development tools like Flutter or React Native.
- A strong portfolio of previous chatbot and/or NLP integrated mobile apps.

Please, only apply if you have relevant experience and can provide examples of your work in this area.