Inboxed vs. 0.email
0.email is a great open-source project. But it runs in your browser or as a web wrapper. Inboxed is a high-performance PRO app built natively for Apple Silicon.
| Feature | 0.email | Inboxed |
|---|---|---|
| Platform | ✕ Web / Browser-based | ✓ Native macOS (Rust + Tauri) |
| Architecture | ✕ JavaScript / Web Stack | ✓ Apple MLX + Metal GPU |
| Ease of Use | ✕ Self-host / Open Source | ✓ One-Click Install |
| Cost | Free (Open Source) | ⚡ Free (Pro: $1 lifetime) |
| AI Models | WebLLM (browser WASM) | ✓ 7B+ params via llama.cpp (Metal) |
Native Power. Zero Friction.
Web apps can feel sluggish. Inboxed is optimized for your Mac's hardware. Get the polish of a native app with the intelligence of a local LLM.
Bottom Line
Zero (0.email) is a promising open-source project built for developers who want full transparency and are comfortable self-hosting or running a web app. Its architecture is public on GitHub, it supports Gmail and other providers via OAuth, and it's integrating AI agents into the email workflow. For non-technical users, though, self-hosting is a barrier and the cloud-hosted version raises the same data-trust questions as any SaaS tool. Inboxed targets the opposite end of the spectrum: a polished native macOS binary you install once, with no self-hosting required and no email content ever leaving the device. Choose Zero if you want to inspect and modify the source; choose Inboxed if you want a complete, zero-configuration native experience.
Frequently Asked Questions
What is Zero (0.email) and how does it differ technically from Inboxed?
Zero is an open-source, web-based email client hosted on GitHub under the Mail-0 organization. It connects to existing email providers — primarily Gmail — via OAuth, applies AI agent features on top, and can be self-hosted by anyone with a server. Its stack is JavaScript/TypeScript running in a browser or Electron wrapper. Inboxed is a compiled Rust + Tauri binary distributed as a native macOS app. The practical differences: Zero requires a web runtime and a server (yours or theirs); Inboxed requires no server, runs entirely on your Mac, and uses Apple Silicon's Metal GPU for local AI inference rather than remote API calls.
Is Zero actually private if I use the hosted version rather than self-hosting?
Zero's privacy story depends almost entirely on which deployment you use. Self-hosted Zero means your email credentials and message content only touch servers you control — that's a strong privacy posture, though it requires operational effort to keep secure. The hosted version at 0.email involves trusting the Zero team's infrastructure with OAuth tokens that grant read/write access to your inbox. Zero explicitly states it doesn't track, collect, or sell data, but the architecture still requires your email to flow through their servers for AI processing. Inboxed takes a different approach: nothing leaves your Mac for AI, though your email still lives with your email provider (Gmail, iCloud, etc.) as normal.
Who is Zero best suited for, and who should consider Inboxed instead?
Zero is best suited for developers who want to understand exactly how their email client works, contribute features, or run the entire stack on infrastructure they control. It's an early-stage project with active GitHub development, which means features are evolving quickly but stability and polish are works in progress. Non-technical users who don't want to manage a server, deal with deployment configurations, or tolerate a web-app UX on macOS will find Inboxed more immediately usable. Inboxed also has a clear business model (free tier plus $1 lifetime Pro), while Zero's long-term sustainability as an open-source project is still being established.