244+ iOS apps curated and reviewed
The best certifient secure email apps on iPhone average 4.2★ across 244+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | Free | 2.8★ (64) | No | No | May 2026 |
| 3 |  | Free | — | No | Yes | May 2026 |
| 4 |  | Free | 4.4★ (231) | No | Yes | Aug 2026 |
| 5 |  | Free | 2.6★ (7) | No | No | May 2026 |
| 6 |  | Free | 5.0★ (1) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.4★ (18K) | Yes | No | Aug 2026 |
| 8 |  | Free | 3.6★ (9) | No | Yes | Jul 2026 |
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.
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.
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.
Securely send and receive encrypted email messages from any device. This platform simplifies email encryption, allowing you to communicate privately with anyone, regardless of their email provider. Access your secure inbox, sent items, and track message delivery.
This secure email service uses strong encryption to protect your communications. Send and receive encrypted messages with anyone, even those without the app. Access your encrypted mailbox via your device or a web interface.
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.
Secure and encrypted email with a personalized @black.com address. Features AI writing tools for effortless composition, unlimited storage, and alias addresses to manage spam. Protects your data with zero-access encryption and app-based two-factor authentication.
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.
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.
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.
Manage multiple email accounts, calendars, and contacts securely on your mobile device. This robust solution integrates with business tools and offers advanced security features for enterprise or BYOD environments, protecting personal data.
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.
A secure email service designed to evolve with future technological trends. Protect your private conversations by downloading this application.
This app provides a secure and user-friendly way to manage multiple Gmail and Google Apps accounts. It offers Touch ID and passcode protection for enhanced privacy, allowing quick access and switching between inboxes without repeated password entry.
