Secria Mail vs Tacitus Mail
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Secria Mail
Experience secure, end-to-end encrypted email with a zero-knowledge architecture. Your communications remain private, protected by advanced post-quantum cryptography. Designed for ultimate user privacy.
- End-to-end encryption
- Zero-knowledge architecture
- Post-quantum cryptography
- Private messaging
- Privacy-focused design
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End-to-end encrypted email with zero-knowledge architecture. Your messages stay private, even from us. Every feature is designed with your privacy in mind, using NIST post-quantum cryptographic standards. Terms of Use: https://secria.me/app-tos
Tacitus Mail
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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
Screenshots
Verdict
The clearest difference is iOS requirement: Secria Mail at 15.0 against Tacitus Mail's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Secria Mail sells 4 in-app purchases, starting at $3.99 per month and Tacitus Mail sells 10 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Secria Mail | Tacitus Mail |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 15 MB | 8 MB |
| Age rating | 4+ | 17+ |
| Developer | Secria, Inc. | Docs Printing SRL |
In-app purchases
Secria Mail
- Plus Monthly$3.991 Month
- Pro Monthly$9.991 Month
- Plus Yearly$39.001 Year
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- Pro Yearly$99.001 Year
Tacitus Mail
- TacitusMail 100GB Monthly$1.991 Month
- TacitusMail 200GB Monthly$2.991 Month
- TacitusMail 500GB Monthly$4.991 Month
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- Plus$5.991 Month
- TacitusMail 2TB Monthly$9.991 Month
- Unlimited account$12.991 Month
- TacitusMail 100GB Yearly$14.991 Year
- TacitusMail 200GB Yearly$24.991 Year
- TacitusMail 500GB Yearly$49.991 Year
- TacitusMail 2TB Yearly$89.991 Year








