Tacitus Mail vs AstralDeep

Most email apps are built around your data. Tacitus Mail is built around your privacy. Tacitus Mail is a private-first email and communications client that gives you back control over every message you send, and every conversation you have. End-to-end PGP encryption, private messaging, calendar, and contacts — all in a single app, with no ads, no tracking, and no compromise. SECURE EMAIL, DONE RIGHT Email was never designed with privacy in mind. Tacitus Mail fixes that. Every message can be signed and encrypted using OpenPGP — the gold standard for email security. Your private key is generated on your device and never transmitted anywhere. The Tacitus servers handle delivery, not decryption. Not even we can read your mail. • Full HTML composition with rich formatting • PGP encryption and digital signatures on every message • Automatic public key discovery for Tacitus contacts • Reply, reply-all, forward — with full encryption chain • Inline attachment support • Smart inbox with instant push notifications • Handles slow or unreliable connections gracefully — failed downloads retry automatically so you never miss a message • Works on low-bandwidth networks without sacrificing reliability PRIVATE MESSAGING & CHAT Tacitus Mail includes a built-in private messaging system for real-time communication with other Tacitus users. Messages are delivered instantly, and your conversation history stays on your device. • Real-time private chat with contacts • Messages appear instantly — no need to refresh • Home screen widget showing your most recent conversations at a glance • Unread badges and push notifications for new messages • Chat history synced securely across your devices CALENDAR & CONTACTS Your communications don't happen in isolation. Tacitus Mail integrates your schedule and your address book directly into the experience. • Calendar view alongside your inbox — no context switching • Native calendar event integration • Contacts sync across all your devices and the Tacitus web app • Import your existing address book and use it everywhere • Your contact data stays in your account — never sold, never analyzed OPEN STANDARDS. ZERO LOCK-IN. Tacitus Mail is built on open, proven standards — IMAP, SMTP, and OpenPGP. There is no proprietary format, no walled garden, and no lock-in. You can export your data at any time, use any compatible email client, and migrate away with zero friction if you ever choose to. Your emails are yours. We just help you send them privately. WHY TACITUS MAIL? The name comes from the Roman historian Tacitus, who documented power and corruption when it was dangerous to do so. We believe private communication is a fundamental right — not a feature you unlock with a premium subscription. • No advertising. Ever. • No behavioral tracking or profiling. • No reading of your messages for any purpose. • Transparent privacy policy with no hidden clauses. • Your encryption keys never leave your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ — Privacy Policy: https://tacitusmail.com/privacy

AstralDeep gives you a team of specialist AI agents that work on your behalf — they research live sources, read your files, and keep working on your AstralDeep server after you close the app. And you can hold them to account: every tool is permission-gated, every action lands in a tamper-evident audit log, and nothing the platform builds for itself runs without your approval. AGENTS THAT ACT FOR YOU • Specialists collaborate on each request — live web research with citation-backed briefs (it never fabricates a source), summarization, weather, ML forecasting and classification, connectors, a general assistant — running multiple tools in parallel. • Hand them files in chat and they read them directly. • They remember what matters across conversations and personalize to you over time. IT KEEPS WORKING WHEN YOU DON'T • Schedule work and close the app — jobs run on your server; results are waiting in your workspace when you return. • Upload a file format it can't read yet and the platform drafts its own parser agent, self-tests it against your actual file, and submits it for administrator approval — once approved, it goes live and finishes your original request. • Ask for something no agent covers, and AstralDeep can generate a brand-new agent — security-gated, self-tested, and never run for real without explicit human approval. SECURITY YOU CAN VERIFY Delegation only works if you stay in control — and self-extension is only safe on a platform built to be inspected: • Per-tool permissions: grant and revoke access tool by tool, for every agent. Deny is the default — agents cannot touch what you haven't granted. • Tamper-evident audit: every tool call lands in a cryptographically hash-chained log you can check for tampering — see exactly what your agents did, and when. • End-to-end-encrypted credentials: service credentials you store can be decrypted only by the specific agent that needs them — the server itself never holds them in plaintext. • Attenuated authority: agents act with cryptographically scoped tokens carrying only the authority you delegated — narrower at every hop, never wider. • Sensitive-data guardrails screen text before it reaches outside services, agent network egress is gated, and every safety feature fails closed. LIVE ANSWERS, NOT WALLS OF TEXT Answers arrive as live components — dashboards, charts, tables, timelines — on a per-conversation canvas. Follow-ups update them in place, an adaptive designer arranges multi-part answers, and History steps back through earlier states. ON APPLE WATCH Sign in with a QR code (no typing), ask by voice, hear answers spoken aloud — plus glanceable cards and recent conversations. AstralDeep requires an account on an AstralDeep server; the app signs in through your organization's single sign-on.