FlowCrypt Alternatives

FlowCrypt is described as '(formerly CryptUp) is the easiest PGP encryption for Gmail. It behaves just like standard email, except it's encrypted' and is an app in the security & privacy category. There are more than 10 alternatives to FlowCrypt for a variety of platforms, including Online / Web-based, Mac, Linux, Windows and Android. The best alternative is Proton Mail, which is both free and Open Source. Other great apps like FlowCrypt are Tutanota, Mailbox.org, Yandex Mail and Mailvelope.

FlowCrypt alternatives are mainly WebMail Providers but may also be Email Clients or Calendar Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of FlowCrypt.

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FlowCrypt

Freemium • Open Source

Android
iPhone
Google Chrome
Brave
Firefox
OpenPGP

FlowCrypt (formerly CryptUp) is the easiest PGP encryption for Gmail. It behaves just like standard email, except it's...

Learn more about FlowCrypt

Proton Mail
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Yes
No
Freemium • Open Source
WebMail Provider
Email Client
Calendar App
Linux
Online
Android
iPhone
iPad
Tor
86 alternatives to Proton Mail
Secure email with absolutely no compromises, brought to you by MIT and CERN scientists.
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Proton Mail Features
1. End-to-End EncryptionProton Mail has E2E Encryption, for entire or parts of the app.
2. Privacy focusedProton Mail is considered a privacy friendly alternative.
3. Ad-freeProton Mail doesn't contain any form of external advertising.
4. Two-factor AuthenticationProton Mail supports two-factor authentication (2FA).
5. PGP EncryptionProton Mail supports PGP, an encryption system used for sending encrypted emails and files.
6. No TrackingProton Mail will not track you or use your personal data.
7. Self Destructing MessagesProton Mail supports the use of private messages that will be auto deleted according to a specified time or action.
8. Dark ModeProton Mail supports dark mode for comfortable usage in low light conditions.
9. OpenPGPProton Mail supports OpenPGP, a standard of PGP encryption that is open-source for public use.
Encrypted Email
Mobile friendly
Anonymous Email
Custom Domain
IMAP Support
Filters
Support for Multiple Users
Integrated Spam Protection
Custom Link Alias
Honeypot
Tutanota
Do you think this is a good alternative?
Yes
No
Freemium • Proprietary
WebMail Provider
Email Client
Calendar App
Mac
Windows
Linux
Online
Android
iPhone
iPad
Self-Hosted
Flathub
F-Droid
78 alternatives to Tutanota
Tutanota is the world's most secure email service, easy to use and private by design. You get fully encrypted calendars and contacts with all our personal and business email accounts. It has open source iOS and an Android apps.
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Tutanota Features
1. Privacy focusedTutanota is considered a privacy friendly alternative.
2. End-to-End EncryptionTutanota has E2E Encryption, for entire or parts of the app.
3. Dark ModeTutanota supports dark mode for comfortable usage in low light conditions.
4. Multiple Account supportTutanota support multiple accounts without the need to logout and login
5. LightweightTutanota consumes less device resources compared to similar apps.
6. Email OrganizerTutanota allows you to take control of your inbox by filtering and control tools.
7. Ad-freeTutanota doesn't contain any form of external advertising.
8. No TrackingTutanota will not track you or use your personal data.
9. Calendar IntegrationTutanota lets you sync your tasks and events with your calendar application.
Encrypted Email
Custom Domain
Encrypted calendar
Contacts
Integrated File Sharing
Clean design
Calendar View
Encrypted Connection
Sync Contacts
Support for Aliases
Mailbox.org
Do you think this is a good alternative?
Yes
No
Paid • Open Source
WebMail Provider
Email Client
Calendar App
Online
70 alternatives to Mailbox.org
Mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.org, is easy to remember and can be understood anywhere in the world. They have been operating e-mail accounts for more than 20 years and are a highly reliable service provider.
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Mailbox.org Features
1. Privacy focusedMailbox.org is considered a privacy friendly alternative.
2. PGP EncryptionMailbox.org supports PGP, an encryption system used for sending encrypted emails and files.
3. No TrackingMailbox.org will not track you or use your personal data.
4. Calendar IntegrationMailbox.org lets you sync your tasks and events with your calendar application.
5. Automatic BackupMailbox.org will automatically back up your data periodically.
6. Two-factor AuthenticationMailbox.org supports two-factor authentication (2FA).
7. Spam FilterMailbox.org can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
8. Real time collaborationMultiple users can work together in Mailbox.org simultaneously.
9. Support for AliasesMailbox.org supports aliases, so you can receive email without exposing your main email address
Custom Domain
Encrypted Email
Built-in Calendar
IMAP Support
File Storage
Contacts
CalDAV Support
CardDAV Support
Support for SFTP
Cloud Sync
Yandex Mail
Do you think this is a good alternative?
Yes
No
Freemium • Proprietary
WebMail Provider
Email Client
Online
Android
iPhone
Android Wear
Android Tablet
iPad
88 alternatives to Yandex Mail
Yandex Mail is a reliable email solution for work and personal correspondences with a built-in translator.
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Yandex Mail Features
1. Dark ModeYandex Mail supports dark mode for comfortable usage in low light conditions.
2. Unlimited storageYandex Mail offers a solution with unlimited cloud storage.
Built-in themes
Push Notifications
IMAP Support
POP3 Support
Custom Domain
Mailvelope
Do you think this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
Chrome OS
Microsoft Edge
Google Chrome
Firefox
28 alternatives to Mailvelope
Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard.
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Mailvelope Features
1. PGP EncryptionMailvelope supports PGP, an encryption system used for sending encrypted emails and files.
2. GPG EncryptionMailvelope supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
3. OpenPGPMailvelope supports OpenPGP, a standard of PGP encryption that is open-source for public use.
Encrypted Email
Browser extension
Enigmail
Do you think this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
GnuPG
Thunderbird
SeaMonkey
28 alternatives to Enigmail
Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .
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Enigmail Features
Encrypted Email
Kolab Now
Do you think this is a good alternative?
Yes
No
Paid • Open Source
Calendar App
Mail Server
Cloud Storage Service
Online
Software as a Service (SaaS)
DAVdroid
78 alternatives to Kolab Now
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
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Kolab Now Features
1. Support for AliasesKolab Now supports aliases, so you can receive email without exposing your main email address
2. Real time collaborationMultiple users can work together in Kolab Now simultaneously.
3. Privacy focusedKolab Now is considered a privacy friendly alternative.
4. End-to-End EncryptionKolab Now has E2E Encryption, for entire or parts of the app.
CalDAV Support
WebDAV Sync
CardDAV Support
Swisscows.email
Do you think this is a good alternative?
Yes
No
Freemium • Open Source
WebMail Provider
Email Client
Online
53 alternatives to Swisscows.email
Swisscows.email is another product of Swisscows AG. This product offers you secure email traffic. With Swisscows.email you can send your emails encrypted so that absolutely no one can read them. The service is comparable to a letter that is protected from prying eyes in an...
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Swisscows.email Features
1. Privacy focusedSwisscows.email is considered a privacy friendly alternative.
Encrypted Email
Runbox
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Yes
No
Paid • Proprietary
Online
OpenPGP
50 alternatives to Runbox
Runbox offers email hosting, domain hosting, and web hosting services, as well as custom-made email solutions
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Runbox Features
1. Privacy focusedRunbox is considered a privacy friendly alternative.
2. Two-factor AuthenticationRunbox supports two-factor authentication (2FA).
3. PGP EncryptionRunbox supports PGP, an encryption system used for sending encrypted emails and files.
IMAP Support
Email provider
Encrypted Email
CardDAV Support
Lockbin
Do you think this is a good alternative?
Yes
No
Freemium • Proprietary
WebMail Provider
Mac
Windows
Linux
Android
Android Tablet
37 alternatives to Lockbin
Lockbin is a web application for sending private email messages and files. People use it to send things like credit card numbers or confidential information.
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Lockbin Features
1. End-to-End EncryptionLockbin has E2E Encryption, for entire or parts of the app.
Encrypted Email
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