ProtonMail just added an encrypted calendar to its encrypted Gmail competitor - The Verge

1. ProtonMail just added an encrypted calendar to its encrypted Gmail competitor  The Verge
2. ProtonMail Starts Beta Testing an Encrypted Calendar  Tom's Hardware
3. Android and iOS users will get an encrypted calendar app in 2020  PhoneArena
4. ProtonMail Unveils Fully Encrypted Calendar To Rival Google  Fossbytes
5. ProtonMail Launches Its Encrypted Calendar in Open Beta  Beebom
6. View full coverage on Google News

source https://news.google.com/__i/rss/rd/articles/CBMiYWh0dHBzOi8vd3d3LnRoZXZlcmdlLmNvbS8yMDIwLzEvMS8yMTA0NTgzNi9wcm90b25tYWlsLWxhdW5jaGVkLWVuY3J5cHRlZC1wcm90b25jYWxlbmRhci1iZXRhLTIwMjDSAW5odHRwczovL3d3dy50aGV2ZXJnZS5jb20vcGxhdGZvcm0vYW1wLzIwMjAvMS8xLzIxMDQ1ODM2L3Byb3Rvbm1haWwtbGF1bmNoZWQtZW5jcnlwdGVkLXByb3RvbmNhbGVuZGFyLWJldGEtMjAyMA?oc=5