Chat App (e.g. Messenger)PremiumDifficultyHardRecommended duration to spend during interviews30 minsReport an issueQuestion Design a chat application that allows users to send messages to each other. Real-life examples Messenger WhatsApp Web Slack Discord Telegram Premium QuestionPurchase premium to unlock full access to the question including high quality solutions and companies which ask this question.View subscription plansReport an issueMark as complete