Since iOS 27 the walkthrough cannot run inside the app saved to the Home Screen. Add the icon again with "Open as Web App" turned off, and it opens in Safari.
RGR Planner has a new home. Move your plans there:
This device could not save your latest change. Its storage may be full. Download a backup of this plan so nothing is lost.
Tap rooms to add them to the selection
Welcome to RGR Planner. In Look mode you can pinch, drag and tap around without moving anything. In Edit, press and hold a room until it lifts, then drag it. Orange dots resize; Add puts in doors and furniture.
Everything saves by itself on this device, and Send makes a link you can text.