Proton Mail app
ProtonMail is the world’s largest encrypted email service with millions of users. The ProtonMail secure email app for Android brings easy-to-use email encryption to your mobile device by seamlessly integrating PGP end-to-end encryption. ProtonMail also provides a modern user interface with a full set of innovative features such as customizable swipe gestures and the ability to send expiring emails.
With the ProtonMail app, you can:
- Create a new protonmail.com email address with automatic PGP key creation and management
- Send and receive encrypted emails and attachments automatically
- Set timers for messages to self-destruct after sending
- Quickly organize emails with customizable swipe gestures and labels
- Get push notification of new emails
- Send password protected encrypted emails to non-ProtonMail email addresses
Note: the app is using the Sentry.io library. ProtonMail self-hosts the server part, so this is no "third-party" tracking you. Hence the Tracking AntiFeature is not applied.