One-Time Secret - One-Time Secret is a way to share sensitive information simple and secure.
Google Calendar - Spend less time managing your day & more time enjoying it
Password.link - Securely send and receive secrets using a one-time link. The secret is encrypted and decrypted in the browser using an encryption key only known by the user. Has features like notifications, teams, API. Trusted by IT teams all around the world.
CalenGoo - Features | 1.0.175 for Android™
Password Pusher - Go Ahead. Email Another Password.
Jorte - Schedule books must be practical and has a good design.