Just what you need.
Swing! The new email and contacts experience.
* By January 31, 2019, Swing apps will no longer be available outside Japan.
Gmail, iCloud, Yahoo! JAPAN
Sync with all of your devices.
Manage all your accounts in one app.
Manage your mail in a chat format.
Swingmail works with all major mail providers Gmail, iCloud, Yahoo! JAPAN, Outlook and even with Twitter Direct Messages. All of your mail threads in a simple easy chat format.
Mobile Mail app "Swingmail".
Manage your tasks easily, smartly.
Swingdo aggregates all your tasks, calendar events, mail tasks into a single time line. It even prioritizes your tasks for you.
Mobile Todo app " Swingdo".
Send receive mail and check tasks in Slack.
Gmail, iCloud, Yahoo! and Docomo mail can not only be received in Slack, but also sent from Slack. Even check your calendar and tasks in Slack.
Bot app "Swingbot".