Cross-Platform Productivity App Development

I need an experienced mobile app developer to create a productivity and utility app. The app should be available on both iOS and Android platforms.

Essential Requirements:
- Experience in developing productivity apps
- Proficiency in both iOS and Android development
- Strong UI/UX design skills to ensure a user-friendly interface
- Ability to integrate features like task management, notifications, and data analytics

Ideal Skills and Experience:
- Proven track record of delivering similar apps
- Strong knowledge of mobile app development frameworks
- Excellent problem-solving skills
- Ability to work within budget and timeline constraints

Please provide examples of past work and a brief outline of your approach to this project.