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Greenfoot vs Swift Playground: catalog facts
Greenfoot	Swift Playground
Free Free to download.	Free Free from the App Store.
Windows, macOS, Linux	macOS, iOS
Visual feedback while writing real Java code Official textbook and teacher community	Interactive lessons that teach core coding concepts Uses real Swift and SwiftUI
Focused on education rather than general development Java only	Only available on iPad and Mac Limited compared with Xcode for larger projects
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Proprietary
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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