When comparing Messenger vs Beer Buddy - Scanner & Ratings, the Slant community recommends Messenger for most people. In the question“What are the best Material Design apps?” Messenger is ranked 22nd while Beer Buddy - Scanner & Ratings is ranked 80th. The most important reason people chose Messenger is:
Allows communicating with anyone who's a friend on Facebook.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Uses Facebook friends to create a contacts list
Allows communicating with anyone who's a friend on Facebook.
Pro Read receipts
Can see who has seen each message in group messages.
Pro Easy to share posts from Facebook
Integration with Facebook makes it easy to share any interesting posts from the Facebook timeline.
Pro Great UI
User interface of the application is clean, intuitive and easy to overview.

Pro Save ratings, with or without an account
Whether or not the user has a Rate Beer account, they have access to most of the features, including rating a beer or place.

Pro Lots of reviews by unbiased users
Beer Buddy uses Rate Beer's vast database of beers and user ratings, so the user knows they're getting reviews from real people.

Pro Bar code scanner works
There's no need to install a bar code scanner app to use this feature. Scan a beer's bar code, and the beer's information is available.
Pro Keeps track of beers that the user likes, dislikes or want to try
This app keeps track of the users reviews, quick "ticks", favorites, tasted, "On tap" (wants), recently viewed, recently scanned, and notes.
Cons
Con Lack of privacy
Messenger is owned by Facebook. Based on their privacy policy, this means that any information you provide (including messages sent) are used by Facebook to profile you and sell access to your data to advertisers.
Con Lack of end-to-end encryption
Secret (end-to-end encrypted) chats are only supported in one-to-one messages, and are not enabled by default, and the encryption has not been verified independently.
