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Card 635 of 9772026-09-26 issue

Observed arrival · 2026-09-26

Potassium Mastering’s “honest no”

potassiummastering.app Visit website
Editorial interest 75/100 Selection signal · not a rating of the site

A VST3/AU plugin and standalone app that analyzes music and automatically masters it toward a selected streaming platform’s target.

Landing page captured for the 2026-09-26 issue.
For
Independent musicians and home-studio producers
Worth noticing
Its three-stage analysis listens to a mix, refines against a selected streaming target, then adjusts while aiming to preserve dynamic range.

Field notes

The page lays out a workflow for using the plugin on a master bus or analyzing a whole song in the standalone app. It lists 16 track types, 24 styles, and targets for eight streaming platforms. The standalone file path accepts WAV, AIFF, CAF, or FLAC and lists WAV, FLAC, and MP3 as export formats.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use

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potassiummastering.app

Landing page observed 2026-09-26. The live site may have changed.