FlowCrypt Alternatives

ProtonMail

Secure email with absolutely no compromises, brought to you by MIT and CERN scientists. Swiss Based ProtonMail is incorporated in Switzerland and our servers are located in Switzerland. We are outside of US and EU jurisdiction and all user data is protected by strict Swiss privacy laws. Zero Access Because of our end-to-end encryption, your data is already encrypted by the time it reaches our servers.

Features:

• End-to-End Encryption
• Privacy focused
• Security & Privacy
• Encrypted Email
• Encryption
• Custom domain
• Anonymous email
• E2e encryption
• PGP Encryption
• 4096 Bit encryption
• Anonymity
• Encrypted Connection
• Mobile friendly
• Multiple languages
• Support for Multiple Users
• Self destructing messages

Tutanota

Tutanota is a free and open source web-mail client that focuses on privacy and security. It has open source iOS and an Android apps. The Android app is published on F-Droid (which means the app does not use Google's push notification system) making it a great option if you want to de-Google your life. All data is stored encrypted and can not be searched, i.e. for commercial use. It offers dead easy end-to-end encryption. 1 GB of storage is free for everyone.

Features:

• Encrypted Email
• Privacy focused
• Custom domain
• End-to-End Encryption
• Night mode/Dark Theme
• Encrypted Email
• Encryption
• Privacy Protected
• Anonymity
• Clean design
• Encrypted calendar
• Encrypted Connection
• Integrated File Sharing
• Multiple Account support
• Web-Based

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 OpenPGP standard. Sending and receiving encrypted and digitally signed email is simple using Enigmail. When starting it for the first time, you are guided through the basic setup. We also prepared a new users guide that explains how to use OpenPGP.

Kolab Now

Kolab Now, formerly MyKolab, is a fully featured secure collaboration and communication service that is easy to use on any device. Whether you are a legal counsel, journalist, diplomat or just a regular user: Kolab Now empowers your collaboration and communication, wherever you are. Thanks to a unique mix of usability and security with exclusive hosting in Switzerland, Kolab Now allows law firms, SMEs and other organisations to focus on their core business.

Features:

• CalDAV
• CardDAV
• Cloud Storage
• Email Server
• Notetaking
• Real time collaboration
• Security & Privacy

Mailvelope

Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard. Mailvelope integrates directly into the Webmail user interface, it's elements are unintrusive and easy to use in your normal workflow. It comes preconfigured for major Webmail provider: - Gmail - GMX - Outlook.com - https://alternativeto .

Features:

• Browser extension
• Google Chrome Extensions
• Encrypted Email
• Encryption
• Firefox Extensions