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Best Email Encryption Tool Apps

216+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated June 2026

With an average user rating of 4.2★, the email encryption tool category is one of the App Store's strongest. Browse all 216+ apps we track, sorted so the most loved ones surface first.

Top Picks for Email Encryption Tool

Email - Edison Mail#1

Email - Edison Mail by Edison Software Inc.

No more Spam - Inbox Zero
Editor's Choice
📊 Productivity
4.5😐(78K ratings)
FreeIn-App Purchases
Email - Edison Mail screenshot 1
Email - Edison Mail screenshot 2
Email - Edison Mail screenshot 3
Email - Edison Mail screenshot 4
Email - Edison Mail screenshot 5
Email - Edison Mail screenshot 6

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.

What We Love

  • 🚀 Fast and responsive
  • 👍 Intuitive and user-friendly interface
  • 🔒 Secure with Face ID support
  • 📦 Helpful package tracking and delivery updates

Room to Improve

  • 🐛 Unreliable notifications and email sync issues
  • 🔄 Frequent app crashes and freezes
  • 🔍 Inconsistent search and filtering functionality
Proton Mail - Encrypted Email#2

Proton Mail - Encrypted Email by Proton AG

Fast, private & secure mail
Strong Contender
📊 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
HEY Email#3

HEY Email by 37Signals LLC

Email at its best, by Basecamp
Worth Considering
📊 Productivity
4.7😊(4.3K ratings)
Free
HEY Email screenshot 1
HEY Email screenshot 2
HEY Email screenshot 3
HEY Email screenshot 4
HEY Email screenshot 5
HEY Email screenshot 6

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.

What We Love

  • 🚀 Streamlined email workflow
  • 🔒 Strong privacy focus
  • 👍 Intuitive and user-friendly design
  • 💡 Innovative email organization features

Room to Improve

  • 🐛 Occasional bugs and glitches
  • 🔋 Concerns about offline functionality
  • 💰 Expensive subscription cost

More Email Encryption Tool apps to explore

4
Unroll.Me - Email Cleanup
Unroll.Me - Email Cleanup
Unroll.Me - Email Cleanup
Clean your inbox & block spam
Free

Tired of a cluttered inbox? This app helps you easily unsubscribe from unwanted email subscriptions, block spam, and organize your mail. It provides a clear overview of all your subscriptions, allowing you to manage them individually or in bulk.

View all subscription emailsBlock unwanted emailsKeep desired emails
📊 Productivity
(128K)
free
5
Chuck – Smarter Email with AI
Chuck – Smarter Email with AI
Chuck – Smarter Email with AI
AI Email Cleanup & Unsubscribe
Free

This app offers a fast and private way to manage your inbox. It uses on-device AI to help you clean up thousands of emails, unsubscribe from lists, and organize your communications across multiple accounts. It functions as a full email client with smart notifications.

AI-powered batch email processingBulk delete, archive, and unsubscribeConnect multiple email accounts
📊 Productivity
(15K)
freemium
6
iMailG
iMailG
iMailG
Safe email client for Gmail
Free

iMailG is a secure email client for Gmail with features like Touch/Face ID protection, anti-phishing, and customizable scales for message views. Protect your privacy with strong keychain security and encrypted communication.

🌐 Social Networking
(16)
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
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
9
Cleanfox - Email Cleaner
Cleanfox - Email Cleaner
Cleanfox - Email Cleaner
Block & Delete Unwanted Email
Free

This app helps you declutter your inbox by deleting unwanted emails and unsubscribing from newsletters with a simple swipe. It organizes your subscriptions, identifies senders filling your inbox, and offers powerful spam protection. Recover accidentally deleted emails and even plant trees by referring friends.

Delete thousands of emails with one tapUnsubscribe from unwanted newslettersOrganize subscriptions in one place
📊 Productivity
(26K)
free with in-app purchases
10
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
(565)
freemium
11
Mail App for Gmail
Mail App for Gmail
Mail App for Gmail
Get Email Done
Free

This app offers a streamlined experience for managing your Gmail inbox, focusing on quick triage and instant message sending/receiving. It boasts a fast, reliable performance, especially on VPNs, and a beautiful, animated interface.

Fast email management toolsMultiple actions for inbox tasksReliable VPN performance
📊 Productivity
(8.1K)
subscription
12
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
13
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
14
Canary Mail – AI Email
Canary Mail – AI Email
Canary Mail – AI Email
Read Receipts, Unified Inbox
Free

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.

Unified inbox for multiple accountsAI Copilot for drafting and summarizingRead receipts and email tracking
📊 Productivity
(8.7K)
freemium
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
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
17
Tuta: Encrypted Private Email
Tuta: Encrypted Private Email
Tuta: Encrypted Private Email
Secure, Ad Free Mail Client
Free

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.

End-to-end encryptionAnonymous registrationAd-free experience
📊 Productivity
(3.3K)
freemium
18
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
19
Email for Hotmail & Outlook
Email for Hotmail & Outlook
Email for Hotmail & Outlook
Support Hotmail, Outlook, O365
Free

Streamline your email experience with this app designed for control, privacy, and simplicity. Manage multiple accounts, filter messages, and enjoy real-time notifications. It offers advanced features like custom swipes and secure unlocking to help you achieve more with your inbox.

Unified inbox for multiple accountsAdvanced filtering and searchCustomizable swipe gestures
🔧 Utilities
(2.5K)
free with in-app purchases
20
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