REW
John Mulcahy · Room acoustics measurement and analysis for speakers, subwoofers and audio devices.
REW is Audio Production software for Mac. It is free to download and offers in-app purchases.
About
Room EQ Wizard (REW) measures and analyses room acoustics and audio equipment. It helps examine frequency and impulse responses, choose speaker and listening positions, and configure equalisation. The base application is free; an optional paid Pro upgrade adds multi-input measurement features.
New What’s new in 5.31.3 OpenNavo editorial
Fixes an index-out-of-bounds exception in RTA stepped sine and a class-cast exception when filters change.
Install and uninstall
Install without Homebrew
Download the same file Homebrew uses: www.roomeqwizard.com/installers/REW_macos_5_31_3.dmg
SHA-256 only checks that the download is complete; it is not a security certification. See the SHA-256 and download address
$ brew uninstall --cask rewA regular uninstall removes the app and keeps its settings and caches.
$ brew uninstall --zap --cask \rew--zap also deletes the settings, caches and other files listed in the Homebrew definition. They can include data shared with other apps and cannot be restored, and it does not guarantee that nothing is left.See which files are removed
Facts and sources
- Price
- Free with in-app purchases www.roomeqwizard.comChecked Oct 19
- Vendor system requirements
- Apple silicon: Runs natively · macOS 10.15 or laterIntel: Runs natively · macOS 10.15 or laterwww.roomeqwizard.comChecked Oct 19
- Version 5.31.3
- Recorded by Homebrew on Oct 19
Questions
Is REW safe?
REW is in Homebrew’s official catalog and has not been disabled. Since September 2026, Homebrew disables apps that fail macOS Gatekeeper checks. When installing, Homebrew checks the download from www.roomeqwizard.com against its SHA-256 checksum.
Is REW free?
REW is free to download and offers in-app purchases. Source: www.roomeqwizard.com, checked Oct 19.
How do I completely uninstall REW on a Mac?
Run brew uninstall --cask rew. To delete its settings and caches as well, run brew uninstall --zap --cask rew. That also deletes 3 files and folders, including ~/.
Does REW run on Apple silicon (M1 and later) Macs?
Yes. The vendor states it runs natively on Apple silicon. Source: www.roomeqwizard.com, checked Oct 19.
Where does REW store its settings and data?
Its settings are in ~/. These locations come from Homebrew’s clean-up list.
What is the latest version of REW?
The latest version is 5.31.3, added to Homebrew on Oct 19. REW updates itself; to update it with Homebrew, run brew upgrade --cask --greedy rew.