I am seeking an experienced app developer to create a productivity app for both iOS and Android platforms. The app will focus on enhancing user productivity through three primary functions: task management, time tracking, and calendar integration. Key Requirements: - Intuitive and user-friendly interface - Robust task management system - Accurate and reliable time tracking - Seamless calendar integration with major platforms (Google Calendar, Apple Calendar, etc.) - Cross-platform synchronization - High-quality performance and minimal bugs Ideal Skills and Experience: - Proven experience in developing productivity apps - Strong knowledge of both iOS and Android development - Expertise in UI/UX design - Familiarity with database management and cloud services - Excellent problem-solving skills and attention to detail Please include relevant portfolio work and estimated timelines. App UI design In Flutter, with clean screen-by-screen code Web admin panel Using React.js + Material UI Backend APIs Node.js (Express) or Django (your choice) Database schema PostgreSQL, MySQL, or MongoDB Auth system Firebase Auth or JWT-based Payment integration Razorpay, Stripe – full flow Notification system Firebase Cloud Messaging (push) + SMS/Email Deployment help On Firebase, AWS, DigitalOcean, or Render Full GitHub project structure With setup instructions Maintenance / production launch You or your developer will need to deploy and manage it