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Best Encrypted Email Secure Apps

211+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated May 2026

Out of 211+ encrypted email secure apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Encrypted Email Secure

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
#67in 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
Encrypted Email - Mailfence#3

Encrypted Email - Mailfence by Contactoffice Group

Secure & private mail suite
Worth Considering
📊 Productivity
3.8(76 ratings)
Free
Encrypted Email - Mailfence screenshot 1
Encrypted Email - Mailfence screenshot 2
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Encrypted Email - Mailfence screenshot 5
Encrypted Email - Mailfence screenshot 6

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.

More Encrypted Email Secure apps to explore

4
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
5
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
6
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
7
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
8
Email Encrypt Pro: Secure Mail
Email Encrypt Pro: Secure Mail
Email Encrypt Pro: Secure Mail
Send Private Encrypted Emails
Free

Secure your email communications with advanced encryption. This app protects your messages and attachments from unauthorized access using military-grade, local encryption. Enjoy private and confidential conversations with a simple, intuitive interface.

256-bit encryptionLocal encryption on deviceSecure attachments
📊 Productivity
(0)
free with in-app purchases
9
MySudo - Identity Protection
MySudo - Identity Protection
MySudo - Identity Protection
Private Call, Text, Email, Pay
Free

Create multiple private digital identities, each with a unique phone number, email, and virtual card. Securely communicate and browse the internet while protecting your personal information from spam and scams. Organize your online activities with separate identities for shopping, dating, and more.

Digital identities (Sudos)Private phone numbersSecure email
📊 Productivity
(16K)
free with in-app purchases
10
iMailG
iMailG
iMailG
Safe email client for Gmail
Free

A secure email client for Gmail offering robust protection with Touch/Face ID and passcode. It features customizable message viewing, anti-phishing measures, and in-app browsing. Easily insert text snippets, signatures, and manage attachments.

Touch/Face ID and Passcode protectionAnti-phishing with undisguised URL displayIn-app browsing or external browser options
🌐 Social Networking
(16)
free with in-app purchases
11
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
12
Temp Mail - Encrypted Email AI
Temp Mail - Encrypted Email AI
Temp Mail - Encrypted Email AI
Disposable & Multiple Email
Free
🔧 Utilities
(0)
13
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
14
Virtru Email Protection
Virtru Email Protection
Virtru Email Protection
End-to-End Email Encryption
Free

Secure your emails and attachments with end-to-end encryption on your iOS device. Control access, set expiration dates, and revoke sent messages to ensure data privacy and compliance. Recipients can view protected emails seamlessly without new accounts.

End-to-end email encryptionEncrypt messages and attachmentsSet expiration dates
💼 Business
(64)
free
15
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
16
Egress Secure Mail
Egress Secure Mail
Egress Secure Mail
Integrated data security
Free

Securely send and receive emails on the go with advanced encryption and access control. Protect sensitive data while staying productive, with features like email revocation and audit trails.

Send and receive secure emails on mobileEncrypt and decrypt emailsRevoke access to sent emails
💼 Business
(286)
free with in-app purchases
17
NeoCertified Secure Email
NeoCertified Secure Email
NeoCertified Secure Email
Secure Email Encryption
Free
💼 Business
(0)
18
MEGA: Encrypted Cloud Storage
MEGA: Encrypted Cloud Storage
MEGA: Encrypted Cloud Storage
Secure Storage & Chat
Free

Securely store, sync, and share your files with end-to-end encryption. Communicate privately with encrypted chat and video calls. Access your data from any device, anywhere.

End-to-end encrypted cloud storageSecure one-on-one and group chatEncrypted audio and video calls
📊 Productivity
(103K)
free with in-app purchases
19
HEY Email
HEY Email
HEY Email
Email at its best, by Basecamp
Free

This email client streamlines your inbox with features like call-like screening for senders, grouped message organization, and a unified attachment library. It offers unique ways to read emails, manage receipts, and protect your privacy from trackers.

Screen senders like callsNaturally grouped messagesRead multiple emails at once
📊 Productivity
(4.3K)
subscription
20
FlowCrypt: Encrypted Email
FlowCrypt: Encrypted Email
FlowCrypt: Encrypted Email
Easiest PGP Mail Encryption
Free

Easily encrypt your emails and attachments with PGP for enhanced privacy on Gmail. This app simplifies end-to-end encryption, making it accessible even without technical knowledge of cryptography. Secure your communications and files effortlessly.

End-to-end PGP email encryptionSecure attachment encryptionKey generation and secure storage
📊 Productivity
(3)
free

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