• iPhone Duo support. Every screen adapts as the phone folds and unfolds. When it is open, History sits beside the rulers. • iPad support. Olean now runs on iPad in any orientation and window size, and opens on History. • New History screen. It has a new chart, highest and lowest readings, a Range card, and a card for each day with readings. • Dark mode. Olean now follows your phone's Light or Dark setting. • Support for Accessibility: Larger text, VoiceOver, Increase Contrast or Reduce Transparency • Keyboard support. With a hardware keyboard, use Tab and the arrow keys to move the rulers. Command key shortcuts add and save a reading, and open Scan Monitor, Settings and History.