My personal experience with various Meta mobile apps is that their software engineers couldn’t care less about writing efficient code that would be more efficient and conserve battery capacity. I am the admin of several large FB groups and use Messenger, Instagram and WhatsApp etc. and when I launch an app I know my battery capacity will just drain by the minute. I always make a point for force quitting any Meta app when I’m done using.
It’s easy to see what apps are draining my battery. But I haven’t been on FB et al. today and I’ve been a busy boy today.


iPhone 15 Pro Max purchased in September 2023. I charge to 100% overnight every day. My battery health is 97%.