iOS Battery Saver App Development

I'm looking for an experienced iOS developer to create a Battery Saver app. The app needs to support both iPhone and iPad.

Key aspects of the project include:
- Creating a user-friendly interface
- Ensuring optimal performance across devices
- Implementing effective power-saving techniques

Ideal candidates should have:
- Extensive experience in iOS app development
- A solid understanding of battery-saving technologies
- A portfolio of similar utility apps

Please feel free to share your past work and any ideas you have for this project.