A. 1. Limit background activity: Go to Settings > General > Background App Refresh and turn it off for Prêt à Makeup to reduce battery usage. 2. Lower screen brightness: Reduce your screen brightness or enable 'Low Power Mode' in Settings > Battery to extend battery life while using the app.

B. 3. Close other apps: Ensure that other apps are closed when using Prêt à Makeup to conserve battery life.