Free edition
PanelPlan for Mac
You're using the free edition. It's the full workflow for one project at a time: import a script (text, PDF or Word), letter it, lay out the pages, print and export. PanelPlan for Mac adds:
Where your project is saved: in this browser only. Clearing browser data or site data deletes it, so use Export Project as JSON (Import / Export menu) to keep a copy you can import again.
Type: Work Sans and Anton, used under the SIL Open Font License 1.1.