Version 20.5 Now runs on macOS 15 Sequoia and later, on Apple silicon and Intel Macs. Now free to download: start with a free 20-day trial, then unlock Full Access with a one-time in-app purchase. If you bought the app before it became free, you keep Full Access with no additional purchase; Manage Access checks this automatically and Restore Purchases checks again. Bought the app before it became free and having trouble with access? Contact support@bigskyastro.com. One card per object: an object listed under several catalog numbers now appears as one target card with its common name. More from your Clear Sky time: after a plan is built, unused time inside a Clear Sky span goes back to the targets seated on either side of it. Short captures: a seated capture under 30 minutes shows "A Capture Needs a Change", with a longer seat or a replacement that you can accept or decline. Accurate planets and the Moon: positions are calculated on your Mac, and the planets agree with NASA/JPL Horizons to within about 2 arcminutes. The Moon is calculated from Earth's center, so from your site it can appear up to about 1 degree from its listed position. Back up and restore between devices: Settings > Back Up and Restore saves your plans, target lists, equipment, locations and observing logs in one zip file. A backup from the Windows, iPhone or iPad planner restores on your Mac, and a Mac backup restores on those. After a restore, the planner lists anything it couldn't use, and your previous data is kept in a BeforeRestore copy. Credits: Settings and Help & Recovery now include Credits, listing the people, catalogs, data sources and services the planner relies on. Fixed website links: the privacy policy and feedback links now open the correct BigSkyAstro pages. New users now start with deep-sky targets selected. An illustrated user manual with a new Troubleshooting section.

Corrected the free-trial length in the App Store description (20 days) and minor improvements.

A 20-day free trial of the complete planner. The trial does not renew or charge. Full Access remains a one-time purchase.

Fixes and improvements in this companion release (aligned with iOS 20.2): - Mid-plan Fill Gaps can insert a target into an open cascade window. - Removing a middle Planner row reflows the remaining cascade so later starts stay aligned. - Editing an end time cascades later starts forward. - Build Plan timing cascades respect target visibility and telescope windows, including after-midnight observing. - Dual Clear Sky / boundary-cascade scheduling improvements for multi-target nights.

Updated macOS observing planner workflow, improved target planning tools, refreshed screenshots, and general stability improvements.