Compare software

Highland Pro vs Slugline: catalog facts
Highland Pro	Slugline
Freemium Distributed through the App Store; check the store listing for current pricing.	Freemium Free up to six pages per script; longer scripts need the Unlimited Writing upgrade.
macOS, iOS	macOS, iOS
Handles screenplays and prose manuscripts in one app Native apps for Mac, iPad and iPhone	Automatic screenplay formatting as you type Drag-and-drop outline that moves the matching script text
Apple platforms only, no Windows or Android version Sync depends on iCloud	Apple platforms only Scripts longer than six pages require a paid upgrade
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.