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Max vs Purr Data: catalog facts
Max	Purr Data
Paid A 30-day full-featured trial is available; continued use requires a purchase.	Free Free and open source; the package metadata identifies GPL-3.0-or-later and BSD-3-Clause…
macOS	Windows, macOS, Linux
Visual patching for audio, video, and data Supports MIDI controllers and hardware prototyping	Builds programs through visual data-flow diagrams Supports real-time sound, video and graphics
Requires a purchase after the 30-day trial A free account is required to start the trial	Requires learning Pure Data's visual patching approach
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-or-later and BSD-3-Clause
Account 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 8, 2026	Official website Full listing and sources Checked October 8, 2026

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