Spike - Email, Chat, Notes
A great way to communicate and collaborate
Free
From Hopflow, spikenow.com
Made for iPhone, iPad, iPod touch Needs iOS 10.0 or later
Spike started life as an email app that presented message threads like a conversation in a messaging app, making it feel less formal than a traditional email client. Since then it’s grown into a full-featured email tool, and version 3 adds several new features that take it beyond email and on the way to becoming a collaborative working tool along the lines of Slack or Microsoft Teams.