Google Calendar - Spend less time managing your day & more time enjoying it
Roundcube - Web-based IMAP email client
Lightning Calendar - Organize your life — it’s about time!
Mailo - Mailo is an email client where you can send and receive emails to and from anyone with an email address.
Morgen.so - All-in-one Calendar, Tasks & Scheduler. Morgen is the single hub for everything that revolves around time management.
Mailpile - Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.