Facebook Messenger Product Critique: Score the App Out of Five and Defend the Number

You are interviewing for a product manager role at Meta. The interviewer asks you to give the Facebook Messenger app a score from 1 to 5 and to explain the reasoning behind the score you choose. ```hint Define the scale before using it Decide what a 1 and a 5 mean, then pick the users whose experience you are grading and the criteria that matter most to them. Let the final number follow from evidence on each criterion. ``` ### Clarifying Questions - Should I grade Messenger from the point of view of everyday users, or as a Meta product judged against its business goals? - Which surface is in scope: the standalone mobile app, messaging inside the Facebook app, or the web version as well? - Should the score compare Messenger with alternatives such as WhatsApp, iMessage and Telegram, or judge it on its own? - Should the critique end with improvements that would raise the score? ### What a Strong Answer Covers - A short description of what Messenger is for and who uses it, with a chosen segment or an explicit weighting across personal, Marketplace and business conversations. - An explicit rubric of criteria, weights and scale anchors, so the number can be reproduced. - Evidence-based strengths and weaknesses for each criterion, compared with realistic alternatives. - A final score whose arithmetic matches the rubric, with a clear reason it is not one point higher or lower. - Prioritized improvements tied to the weakest criteria, with how each would be measured. ### Follow-up Questions - Which single change would raise your score the most, and how would you test it? - Would your score differ for a small business that handles customer messages on Messenger, and why? - Meta also owns WhatsApp. Should Messenger try to be different from it, and how?