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MFreeFXBundle vs Valhalla Space Modulator: catalog facts
MFreeFXBundle	Valhalla Space Modulator
Freemium The effects are free to use; an optional paid upgrade unlocks additional interface…	Free Free to download from Valhalla DSP.
Windows, macOS	Windows, macOS
Includes several sound-processing effects Shares a common plug-in interface	Free with no paid tier Eleven flanging and modulation algorithms
Some interface features require the optional paid upgrade.	Needs a host program such as a DAW to use Limited to flanging and related modulation effects
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	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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