Comparison

Agres vs Tacitus Mail

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Agres

Features
Read full description

Read your mail. Keep the next step close. Agres brings email, a local calendar, and to-do lists together on iPhone and iPad. Connect compatible IMAP or POP3 accounts and send mail through your provider's SMTP service. Organize messages by sender Assign sender categories, search downloaded mail, and keep important messages pinned. IMAP server search helps you find messages beyond the local list. Look more closely at the sender Register independently verified sender domains and flag a familiar name using an unexpected domain. Inspect SPF, DKIM and DMARC reports with their available authentication evidence. These signals help you assess a message. Turn a message into a next step Create a calendar event or to-do linked to its source email. Break tasks into nested steps and keep track of work that is new, started or completed. Standard email meeting invitations can appear in Agres Calendar without changing Apple Calendar or sending an acceptance reply. Read and reply your way View plain text or HTML, adjust HTML zoom, preview supported attachments, and use drafts and account signatures. Remote images stay optional. Keep control of your setup App data is stored locally, and passwords use Apple Keychain.

About

Tacitus Mail

Features
Read full description

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 โ€” 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 โ€” 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. โ€ข Full HTML composition with rich formatting โ€ข PGP encryption and digital signatures on every message โ€ข Automatic public key discovery for Tacitus contacts โ€ข Reply, reply-all, forward โ€” with full encryption chain โ€ข Inline attachment support โ€ข Smart inbox with instant push notifications โ€ข Handles slow or unreliable connections gracefully โ€” failed downloads retry automatically so you never miss a message โ€ข 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. โ€ข Real-time private chat with contacts โ€ข Messages appear instantly โ€” no need to refresh โ€ข Home screen widget showing your most recent conversations at a glance โ€ข Unread badges and push notifications for new messages โ€ข 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. โ€ข Calendar view alongside your inbox โ€” no context switching โ€ข Native calendar event integration โ€ข Contacts sync across all your devices and the Tacitus web app โ€ข Import your existing address book and use it everywhere โ€ข Your contact data stays in your account โ€” never sold, never analyzed OPEN STANDARDS. ZERO LOCK-IN. Tacitus Mail is built on open, proven standards โ€” 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 โ€” not a feature you unlock with a premium subscription. โ€ข No advertising. Ever. โ€ข No behavioral tracking or profiling. โ€ข No reading of your messages for any purpose. โ€ข Transparent privacy policy with no hidden clauses. โ€ข Your encryption keys never leave your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ โ€” Privacy Policy: https://tacitusmail.com/privacy

Screenshots

Agres4 screens
Tacitus Mail4 screens

Verdict

The call

The clearest difference is in-app purchases: Agres at none against Tacitus Mail's 10. On price, update cadence, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Tacitus Mail sells 10 in-app purchases, starting at $1.99 per month. Agres asks for nothing beyond the download.

UpkeepUpdate frequency

Agres ships an update fortnightly, Tacitus Mail every 2 weeks. Both last shipped on November 9, 2026.

Scorecard1 real difference ยท 5 level
Agres versus Tacitus Mail: the parameters behind the verdict, then further details
ParameterAgresTacitus Mail
PriceFreeFree
Update frequencyFortnightly โ€” betterEvery 2 weeks
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad, Mac โ€” better
Requires iOS18.017.0 โ€” better
Further details โ€” not scored
Size7 MB8 MB
Age rating4+17+
DeveloperiShopsDocs Printing SRL

In-app purchases

None

Agres

No in-app purchases

10 purchases

Tacitus Mail

Subscriptions10
  • TacitusMail 100GB Monthly$1.991 Month
  • TacitusMail 200GB Monthly$2.991 Month
  • TacitusMail 500GB Monthly$4.991 Month
Show 7 more
  • 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

Questions

Is Agres free?
Agres is free to download, with no in-app purchases.
Is Tacitus Mail free?
Tacitus Mail is free to download, with in-app purchases available.
Do Agres or Tacitus Mail have ads?
Neither Agres nor Tacitus Mail shows ads.
Which is updated more often, Agres or Tacitus Mail?
Agres ships an update fortnightly, and Tacitus Mail every 2 weeks. Most recently, Agres was updated on November 9, 2026 and Tacitus Mail on November 9, 2026.

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