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Best Email Encryption Apps

207+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated May 2026

With an average user rating of 4.2★, the email encryption category is one of the App Store's strongest. Browse all 207+ apps we track, sorted so the most loved ones surface first.

Top Picks for Email Encryption

Proton Mail - Encrypted Email#1

Proton Mail - Encrypted Email by Proton AG

Fast, private & secure mail
Editor's Choice
📊 Productivity
4.7😊(45K ratings)
FreeIn-App Purchases
#66in Productivity
Proton Mail - Encrypted Email screenshot 1
Proton Mail - Encrypted Email screenshot 2
Proton Mail - Encrypted Email screenshot 3
Proton Mail - Encrypted Email screenshot 4
Proton Mail - Encrypted Email screenshot 5
Proton Mail - Encrypted Email screenshot 6

This encrypted email service from Switzerland prioritizes user privacy with end-to-end encryption. It offers robust security features to protect your communications from phishing, spam, and tracking, allowing you to manage your inbox with ease.

What We Love

  • 🚀 Smooth performance
  • 🔒 Excellent security and privacy
  • 👍 Clean and intuitive interface
  • 💡 Expanding ecosystem of Proton services

Room to Improve

  • 🐛 Occasional crashes and bugs
  • ⏱️ Slow email loading times
  • 📝 Lacking advanced email management features
Tuta Mail: Secure Email#2

Tuta Mail: Secure Email by Tutao GmbH

Secure, Ad Free Mail Client
Strong Contender
📊 Productivity
4.7😐(3.4K ratings)
FreeIn-App Purchases
Tuta Mail: Secure Email screenshot 1
Tuta Mail: Secure Email screenshot 2
Tuta Mail: Secure Email screenshot 3
Tuta Mail: Secure Email screenshot 4
Tuta Mail: Secure Email screenshot 5
Tuta Mail: Secure Email screenshot 6

Secure your communications with an encrypted email service offering end-to-end encryption for emails and contacts. Enjoy features like anonymous registration, an ad-free experience, and a free encrypted calendar. Protect your privacy with a service developed and hosted in Germany.

What We Love

  • 🔒 Secure email service
  • 💡 Encrypted subject lines and contacts
  • 👍 Clean and simple interface
  • 🚀 Reliable and fast

Room to Improve

  • 🐛 Occasional app crashes
  • 🐛 Inconsistent email delivery
  • 🐛 Unreliable search functionality
Canary Mail – AI Email#3

Canary Mail – AI Email by Cartasec Pte. Ltd.

Read Receipts, Unified Inbox
Worth Considering
📊 Productivity
4.5😐(8.7K ratings)
FreeIn-App Purchases
Canary Mail – AI Email screenshot 1
Canary Mail – AI Email screenshot 2
Canary Mail – AI Email screenshot 3
Canary Mail – AI Email screenshot 4
Canary Mail – AI Email screenshot 5
Canary Mail – AI Email screenshot 6

This app unifies multiple email accounts into a single inbox, offering AI assistance for drafting, replying, and summarizing messages. It includes features like read receipts, email tracking, and advanced organizational tools to streamline your communication.

What We Love

  • 👍 Clean and intuitive interface
  • 🚀 Fast email processing
  • 🔒 Robust security and encryption features
  • 💡 Useful AI-powered features (e.g. email summarization)

Room to Improve

  • 🐛 Inconsistent performance and reliability issues
  • 🐛 Bugs with email deletion, drafts, and notifications
  • 🔋 High battery consumption

More Email Encryption apps to explore

4
Spark Mail: AI Email Assistant
Spark Mail: AI Email Assistant
Spark Mail: AI Email Assistant
Smart Inbox & Mail Assistant
Free

Streamline your email and calendar management with an AI-powered assistant. Organize multiple accounts, declutter your inbox with smart sorting, and use AI to draft replies, summarize threads, and manage your schedule efficiently.

Unified inbox for multiple email accountsAI-powered email summarization and draftingSmart Inbox for prioritizing emails
📊 Productivity
(82K)
free with in-app purchases
5
Email - Edison Mail
Email - Edison Mail
Email - Edison Mail
No more Spam - Inbox Zero
Free

Manage multiple email accounts in one unified inbox. This app offers fast email fetching, smart search for important information, and tools to reduce inbox clutter. It prioritizes privacy and security with features like sender blocking and biometric protection.

Unified inbox for all accountsFast email fetching and searchOne-tap unsubscribe
📊 Productivity
(78K)
free with in-app purchases
6
Superhuman Mail
Superhuman Mail
Superhuman Mail
The most productive email app
Free

This email application streamlines inbox management with AI-powered drafting and summarization. It helps users prioritize important messages, schedule emails for optimal delivery, and collaborate with teams through shared email views and integrated CRM tools. Save time and improve responsiveness with advanced features.

AI email draftingAutomatic email summarizationCustomizable inbox triage
📊 Productivity
(3.5K)
free with in-app purchases
7
mail.com - email & cloud
mail.com - email & cloud
mail.com - email & cloud
Mailbox for storage & mail
Free

Manage your emails and cloud storage from a single app. Receive instant notifications for new messages and access your contacts and documents on the go. Secure your account with PIN or biometric authentication.

Unified inbox for all email addresses2GB cloud storagePush notifications
📊 Productivity
(103K)
free with in-app purchases
8
Mail: Email, Cloud, Calendar
Mail: Email, Cloud, Calendar
Mail: Email, Cloud, Calendar
Tackle your inbox email!
Free

This app consolidates email, calendar, notes, and cloud storage into a single platform. It offers AI-powered email summarization, vacation planning, customizable notifications, and translation features. Manage multiple email accounts and organize newsletters efficiently.

Unified inbox for multiple email accountsAI-powered email summarizationSmart calendar with vacation planner
📊 Productivity
(60K)
free with in-app purchases
9
myMail box: email client app
myMail box: email client app
myMail box: email client app
E-mail for Gmail, Hotmail, AOL
Free

Consolidate and manage multiple email accounts from various providers in a single, user-friendly interface. Enjoy customizable notifications, enhanced security features, and efficient search capabilities to streamline your communication.

Unified inbox for multiple email accountsCustomizable push notificationsEmail thread view
📊 Productivity
(17K)
free with in-app purchases
10
Blue Mail - Email | Calendar
Blue Mail - Email | Calendar
Blue Mail - Email | Calendar
AI-Powered, Fast & Secure
Free

Manage all your email accounts from various providers in one unified, ad-free inbox. This app offers AI-powered writing assistance, an integrated calendar, and advanced spam management for enhanced productivity.

Unified inbox for multiple email accountsAI-powered email writing and summarizationIntegrated calendar with event management
💼 Business
(10K)
free with in-app purchases
11
Zoho Mail - Email and Calendar
Zoho Mail - Email and Calendar
Zoho Mail - Email and Calendar
More than just an inbox
Free

This app provides secure business email and calendar management on the go. It offers a unified inbox for multiple accounts, offline access, and advanced privacy features. Collaborate seamlessly with colleagues and manage your schedule efficiently.

Unified inbox for multiple accountsOffline email accessEnd-to-end encryption
📊 Productivity
(8K)
free with in-app purchases
12
Fused Encrypted Email and Chat
Fused Encrypted Email and Chat
Fused Encrypted Email and Chat
EPRIVO Private Telegram & Mail
Free

This app provides a unified platform for private messaging, combining end-to-end encrypted emails and chats. It offers advanced privacy controls for individual messages, allowing future management of content on recipient devices and in the cloud. Securely send and archive emails, and enjoy encrypted Telegram chats with enhanced security features.

End-to-end encrypted emails and Telegram chatsEncrypted Telegram group chatsPrivate voice/text emails
📊 Productivity
(53)
subscription
13
Atomic Mail: Private Email
Atomic Mail: Private Email
Atomic Mail: Private Email
Secure & Encrypted Mail
Free

This secure email application prioritizes user privacy with advanced encryption, zero-access architecture, and robust spam protection. It offers a fast, modern client for personal and business use, without trackers, profiling, or data selling.

End-to-end encryptionZero-access protectionAlias support
📊 Productivity
(180)
freemium
14
iPGMail
iPGMail
iPGMail
PGP encryption made easy!
$3.99

This app simplifies PGP encryption for iOS users, allowing easy sending and receiving of encrypted emails and files. It supports the OpenPGP standard, key management, and various import methods for keys and messages.

PGP encryption and decryptionSend and receive encrypted emailsEncrypt and decrypt files
🔧 Utilities
(235)
free
15
Voltage Mail
Voltage Mail
Voltage Mail
Read and send voltage emails
Free

Securely read and compose encrypted emails on your mobile device. This app allows you to send and receive secure messages, integrating with your existing email accounts and offering robust security features for organizations.

Read encrypted emails and attachmentsCompose new secure email messagesSend and receive secure emails
💼 Business
(736)
freemium
16
Encrypted Email - Mailfence
Encrypted Email - Mailfence
Encrypted Email - Mailfence
Secure & private mail suite
Free

This app provides a secure and private email service with integrated cloud storage, calendar, and contacts. It offers end-to-end encryption and password-protected emails for enhanced privacy. Ideal for individuals and businesses seeking a secure communication and collaboration platform.

OpenPGP encrypted emailsPassword-protected emailsIntegrated cloud storage (Drive)
📊 Productivity
(76)
freemium
17
SecureMyEmail
SecureMyEmail
SecureMyEmail
Encrypt ANY Email Address
Free

Easily encrypt any email address with military-grade, end-to-end encryption. Send secure messages and attachments to anyone, even if they don't use the app. Features include self-destructing messages and HIPAA/GDPR compliance.

PGP email encryption for any addressEnd-to-end encrypted email and attachmentsSelf-destructing ephemeral messages
📊 Productivity
(33)
free with in-app purchases
18
Fastmail – Email & Calendar
Fastmail – Email & Calendar
Fastmail – Email & Calendar
Privacy-first email with more
Free

Manage your email, contacts, and calendar with a privacy-focused service. Offers powerful search, inbox decluttering tools, and customizable gestures for efficient communication. Seamlessly syncs across devices and supports open standards.

Offline access to emailPowerful search with refinementInbox decluttering tools
📊 Productivity
(564)
freemium
19
Temp Mail - Encrypted Email AI
Temp Mail - Encrypted Email AI
Temp Mail - Encrypted Email AI
Disposable & Multiple Email
Free
🔧 Utilities
(0)
20
PreVeil
PreVeil
PreVeil
End-To-End Encrypted Email
Free

Securely send encrypted emails and store files with end-to-end encryption. Your data is protected by unique keys, ensuring only you can access it. Integrates with existing email addresses and offers desktop access.

End-to-end encrypted emailEncrypted file storage and sharingUses existing email addresses
💼 Business
(34)
ad-supported

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