Gym Class Booking Bot

I need a bot that can book gym classes through a mobile app. The bot should support both iOS and Android platforms.

Key requirements:
- Interact with the gym's mobile app
- Compatible with both iOS and Android
- Quick turnaround; ASAP completion required

Ideal skills and experience:
- Experience in developing mobile app bots
- Familiarity with iOS and Android platforms
- Ability to deliver projects on a tight schedule

Please provide examples of similar work and a timeline for completion.