MeSign
Encrypted email client
Only for iPhone
Free · Designed for iPhone
iPhone
MeSign App is an encrypted email client that is free and easy-to-use. No need to register a new email account. Just download MeSign app and log in to your existing email account. In a few moments, your free email certificate will be automatically installed, and you can start sending encrypted and digitally signed emails as easily as regular cleartext emails. Your emails will be stored in ciphertext on your email server only. Your email privacy will be end-to-end encryption protected.
Here are some cool features you will love:
- Automated S/MIME encryption
Real privacy of communication requires encryption of emails in transit and at rest. It is normally a hustle to apply, install and configure email certificates into your email client. We have achieved a completely automated S/MIME encryption without changing your email address. MeSign app automatically installs and configures S/MIME certificates issued by MeSign CA in a few minutes after logging in. Then, all your outgoing emails will be encrypted to ensure protection and confidentiality.
- Automated email digital signature and timestamp
The sender’s identity as well as the time of sending can be forged and manipulated. With MeSign app all emails are digitally signed and timestamped to ensure authenticity, original sent time and identify a fraud.
- Easy key management
The free cloud key management service enables you to automatically install your encrypting certificate whenever you install MeSign App from a new device to log in to your email. The expired email certificate will also be automatically renewed for free.
- Automatic key exchange
The free cloud public key exchange service enables you to send encrypted email to anyone without manually exchanging public keys in advance.
- Full security scan
MeSign app performs email attachments and hyperlinks security scanning and Spam identification of all incoming emails.
- Email encryption is compatibility with Outlook, Thunderbird, iMail etc.
MeSign use S/MIME standard for email encryption, compatible with other S/MIME supported email clients like Outlook, Thunderbird and Apple Mail, and can decrypt the encrypted email with each other.
Download MeSign app now and discover these and more features. Let us protect our privacy and communicate securely.
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Fixed:
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The developer, MeSign Technology Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MeSign Technology Limited
- Size
- 61.5 MB
- Category
- Productivity
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
English and 13 more
- English, French, Hindi, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Turkish, Vietnamese
- Age Rating
4+
- 4+
- Contains
Messaging and Chat
- Copyright
- ©2025 MeSign Technology Limited