Editor's Review
There is not much left to introduce about Facebook, so the useful question is what the Android client is like to live with rather than what the service does. With ten billion installs recorded, it ships preloaded on a large share of phones, which means plenty of people never chose it at all.
What sits inside: the main feed, Reels for short video, Stories, Marketplace for local buying and selling, groups, events, dating in supported countries, and messaging that in most cases pushes you towards the separate Messenger app. Marketplace and groups are the two parts people keep the app for long after they have stopped posting, because the local selling and the interest communities have no straightforward replacement.
The cost of running it: this is one of the largest apps on a typical phone and its cache grows steadily. Background activity, location access and notification volume all need attention in settings unless you want it sitting at the top of the battery list. On older or low-storage handsets, the mobile site in a browser is honestly the better experience.
Advertising and data: the business model is targeted advertising and the app collects accordingly. Meta does expose controls, including ad topic preferences, off-app activity and permissions, but they are buried and none of them default in your favour. Anyone installing this should spend ten minutes in the privacy and ad settings before anything else.
Verdict: a 4.56 average says the mass audience is satisfied. The app is capable and quick on current hardware, and it remains the only realistic route to Marketplace and long-running groups. It is also heavy, noisy and built to keep you scrolling, and it rewards a user willing to switch much of it off.
Features
News feed carrying posts from friends, pages and groups
Reels short-video feed
Stories that expire after a day
Marketplace for local buying and selling
Groups and community discussion spaces
Events with invitations and reminders
Watch section for longer video
Privacy, ad topic and off-app activity controls
Pros
Marketplace and long-running groups have no direct equivalent elsewhere
Quick and stable on current hardware despite the feature count
Controls for ads, permissions and notifications do exist if you go looking
Cons
Large install size and a cache that keeps expanding
Heavy background battery and data use unless actively restricted
Messaging is split into a separate app for most users
Privacy settings are scattered and default to the collection-friendly option
