Newton is a beautiful email app with Read Receipts, Send Later, Snooze & more for modern-day business communication. For Mac, Windows, iOS & Android. The application is known for its searching capabilities, cross-platform abilities and user interface. Newton is their take on modern email. They believe that modern email should be delightful, context aware and contemporary. Since it’s launch in the fall of 2013, they’ve quickly got it in the hands of more than a million people.