Create android app for complete gym management

I am looking for a freelancer to create an Android app for complete gym management.

Features:
- Membership management
- Data logging
- User friendly

Designs:
- I do not have any existing designs or wireframes for the app, so I need the freelancer to design it.

Timeline:
- The preferred timeline for this project is less than 1 month.

Ideal Skills and Experience:
- Experience in developing Android apps
- Knowledge of gym management systems
- Ability to design user-friendly interfaces
- Familiarity with payment processing integration
- Strong attention to detail and ability to meet tight deadlines