DrawLint.aiMedium✦ Official
45 minWhatsApp / Messaging
Design a mobile messaging service with end-to-end encryption supporting text, media, voice/video calls, and group chats.
These requirements and scale numbers are for reference. The AI reviewer will evaluate your design based on the functional requirements and assumptions you define.
🎯 Key Requirements
- •1:1 and group messaging with offline store-and-forward
- •Sent / delivered / read receipts
- •Support media attachments (images, voice notes)
📐 Scale Expectations
- •5M users, 1M daily active
- •10K messages per second at peak
- •Online delivery within 500ms