NotePlan
SubscriptionDuo-native
Notes, tasks and your calendar side by side
Registry/ Apps /OmniOutliner
On the Duo: Duo-native. Version 6.4 (21 October) added iPhone Duo support, its release notes say; Omni's blog shows the outline sidebar beside a focused section on the open Duo. Checked November 5, 2026.
App Store data as of November 5, 2026
Why it's here
Not for
Anyone after a quick notes app should skip it; its strengths are columns, styles and structure, and Pro costs a good deal.
About OmniOutliner
OmniOutliner organises information as an outline you can fold, reorder and focus on one branch at a time. Rows can carry extra columns such as durations, checkboxes or numbers, and notes sit under each row. Essentials offers a streamlined set of styles and organising tools; Pro adds full styling, Dynamic Themes, customisation and automation. Omni Links connect outlines to other documents, and the app works with Apple Intelligence. A single licence covers Mac, iPad, iPhone and Vision Pro, and both tiers are one-time purchases after a free trial.
Version 6.4 (21 October) added iPhone Duo support: a compact layout on the cover screen, a sidebar that adjusts as the phone opens or closes, an iPad-like layout on the inner display and Split View with another app or document. Omni's blog shows a talk outline on the open Duo, with its headings in the sidebar on the left and the focused section and its Duration column on the right.
