AI-Powered English Learning Mobile App Development

We are looking for an experienced mobile development team or individual developer to build an AI-powered English learning application for both iOS and Android.

The application should act as a personal English tutor that evaluates a user's language proficiency and continuously helps them improve through intelligent, personalized learning.

Core Features
User registration and profile management
Initial English proficiency assessment
Reading, Listening, Speaking, and Writing tests
Automatic CEFR level evaluation (A1, A2, B1, B2, C1, C2)
AI-generated personalized learning plans
Daily exercises and assignments
Real-time AI conversation practice
Speaking evaluation with pronunciation feedback
Writing correction and improvement suggestions
Progress tracking and performance analytics
Personalized recommendations based on strengths and weaknesses
Push notifications and study reminders
Technical Requirements
Cross-platform mobile application (Flutter preferred)
Backend development using Python (FastAPI or Django)
Database integration (PostgreSQL)
Integration with modern AI APIs for language assessment, tutoring, speech recognition, and speech synthesis
Scalable architecture suitable for future growth
Deliverables
Complete source code
Backend API
Mobile applications for iOS and Android
Documentation
Deployment assistance
Developer Requirements
Proven experience in mobile app development
Experience integrating AI/LLM technologies
Strong understanding of speech recognition and language learning applications
Portfolio of relevant projects is highly preferred