Delta Chat vs Discord

Delta Chat is a free, open-source messaging app that delivers end-to-end encrypted chats over the existing email network instead of a proprietary server infrastructure. Any two Delta Chat users can message each other using just an email address, with the app handling the IMAP/SMTP plumbing invisibly in the background so it feels like a normal chat app. The project also runs dedicated "chatmail" relay servers for people who want an account without an existing email address, and supports multi-device sync, audited end-to-end encryption, and small in-chat web apps (webxdc) for games and simple tools. Because it rides on open Internet standards rather than a single company's servers, no account can be shut down by one vendor and the core client is developed in the open on GitHub.

Discord is a communication platform organized around servers and channels, hugely popular with gaming and online communities but increasingly used by all kinds of groups. It combines text, voice, and video with rich bots and integrations.

• Completely free with no ads, subscriptions, or data monetization.
• Works over infrastructure the user already controls (their own email/chatmail server), avoiding vendor lock-in.
• Open-source codebase lets security researchers audit the encryption implementation.
• No phone number required to create an account, unlike most mainstream messengers.

• Great for communities
• Excellent voice quality
• Rich bot ecosystem
• Free and generous

• Network effect is small compared to WhatsApp, Telegram, or Signal, so contacts must also install it.
• Email-based transport can feel slower or clunkier than purpose-built messaging protocols for some users.
• Group and multimedia features are less polished than dedicated chat apps with larger engineering teams.

• Can be overwhelming to moderate
• Not built for formal business
• Nitro upsells