Cross-Platform White Noise App

I'm looking for an experienced mobile app developer to create a white noise sound creator app for both iOS and Android platforms. The app should include a variety of sounds: nature, industrial, and ambient.

Key Requirements:
- Develop a mobile app for iOS and Android
- Include a diverse range of white noise sounds (nature, industrial, ambient)
- User-friendly interface
- High-quality sound output

Ideal Skills and Experience:
- Proven experience in mobile app development
- Strong knowledge of sound integration
- UI/UX design skills
- Familiarity with both iOS and Android platforms

Please provide examples of previous work and a timeline for project completion.